
PVC Imperial Pressure Pipe Union
PVC Pressure Pipe Union
Pressure Pipe Unions should be used in conjunction with Imperial Pressure Pipework. The PVC Imperial Pressure Pipe Union allows you to join two Imperial Pressure Pipes together of the same size, which can then be unscrewed after the fitting has been glued up. Imperial Pressure Pipework and fittings are strong and durable and will provide a permanent connection when secured with Solvent Cement. These items are available in 5 different sizes 4″,3″,2″,1.5″ and 1″.
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- Metric Pressure Pipe
- Imperial Pressure Pipe
- Black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£5.54 – £49.37Price range: £5.54 through £49.37 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

PVC Imperial Pressure Threaded Tank Connectors
PVC Imperial Pressure Threaded Tank Connectors
Why use PVC Imperial Pressure Threaded Tank Connector Threaded Tank Connectors ?
The choice of which type of pipework to use has always been a dilemma.
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- Metric Pressure Pipe
- Imperial Pressure Pipe
- Black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£6.85 – £12.65Price range: £6.85 through £12.65 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

PVC Metric Pressure Pipe
PVC Metric Pressure Pipe
Why use Pressure Pipe ?
The choice of which type of pipework to use has always been a dilemma.
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- metric Pressure Pipe
- imperial Pressure Pipe
- black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£5.85 – £68.40Price range: £5.85 through £68.40 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

PVC Metric Pressure Pipe End Cap
PVC Metric Pressure Pipe End Caps
Pressure Pipe End Caps should be used in conjunction with Metric Pressure Pipework. Pressure Pipe End Caps are designed to be used to cap off the end of Metric Pressure Pipework and must be glued on. Metric Pressure Pipework and fittings are strong and durable and will provide a permanent connection when secured with Solvent Cement. These items are available in 7 different sizes 110mm,90mm,75mm,63mm,50mm,40mm and 32mm
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- Metric Pressure Pipe
- Imperial Pressure Pipe
- Black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£1.07 – £17.09Price range: £1.07 through £17.09 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

PVC Metric Pressure Pipe Reducers
PVC Metric Pressure Pipe Reducers
Pressure Pipe Reducers should be used in conjunction with PVC Pressure Pipework and fittings. These Reducers will fit directly into a pipe fitting of the larger stated size and allow a pipe of the smaller stated size to fit into it. Metric Pressure Pipework and fittings are strong and durable and will provide a permanent connection when secured with Solvent Cement. These items are available in 4 different sizes 110mm-90mm,90mm-63mm,63mm-50mm and 50mm-40mm.
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- Metric Pressure Pipe
- Imperial Pressure Pipe
- Black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£1.79 – £8.99Price range: £1.79 through £8.99 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

PVC Pressure Pipe Plain Male – Female Thread
PVC Pressure Pipe Plain Male – Female Thread
PVC Pressure Pipe Plain Male – Female Thread should be used in conjunction with Imperial Pressure Pipework. This fitting allows you to screw on to either a 1.5″ or 2″ bsp thread and then glue fit on the other side.
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- Metric Pressure Pipe
- Imperial Pressure Pipe
- Black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£8.83 – £12.69Price range: £8.83 through £12.69 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

PVC Threaded Hosetail 1.5″Bsp to 1.5″ Flexi Pipe
PVC Hosetail 1.5″Bsp to 1.5″ Flexi Pipe
This PVC Hosetail 1.5″Bsp is to screw into a 1.5″ female socket. This will take 1.5″ Flexi pipe.
The choice of which type of pipework to use has always been a dilemma.
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- Metric Pressure Pipe
- Imperial Pressure Pipe
- Black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.

Threaded Black Stepped Hose Tail 1.5″bsp
Threaded Black Stepped Hose Tail 1.5″bsp
This Threaded Black Stepped Hose Tail 1.5″bsp is to screw into a 1.5″ female socket. This will take 1.5″ – 1.25″ – 1″ – 3/4″ Flexi pipe.
The choice of which type of pipework to use has always been a dilemma.
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- Metric Pressure Pipe
- Imperial Pressure Pipe
- Black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.

TP Pressure Pipe Ball Valves (Blue Handle)
Pressure Pipe Ball Valves ( Blue Handle)
Pressure Pipe Ball Valves are designed to be used with Imperial Pressure Pipe. Pressure Pipe Ball Valves are available in a range of sizes to suit your requirements. These sturdy ball valves are designed to fit standard pressure pipe and can be utilised for numerous applications. Ball Valves are well suited for reducing pump flow rates, isolating pipework runs or opening and closing drain outlets. Thanks to the Double Union connections, equipment such as pumps can easily be removed by turning off the valve and unscrewing it from the system.
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- Metric Pressure Pipe
- Imperial Pressure Pipe
- Black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£19.79 – £166.49Price range: £19.79 through £166.49 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

Valterra Slide Valve Replacement Washers
Valterra Slide Valve Replacement Washers
The Valterra Slide Valve Replacement Washers are sold singly. These are available in 4″/110mm, 3″, 2″ and 1.5″. Unfortunately after time the seals in the slide valves tend to leak and need to be replaced.
Sold Singly
£3.73 – £5.69Price range: £3.73 through £5.69 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

Valterra Spring Non-Return Valves
Valterra Spring Non-Return Valves
The Valterra Spring Non-Return Valves provides a simple means of preventing backflow in pipe work where this would be undesirable i.e. in pumped systems or where Elecro heaters are fitted in line. This Double Union Flapper Non Return Valve (swing check) Valve is probably unique in its design and is the first we have been able to find where the valve can be viewed for periodic cleaning etc. The Flapper type non return valves create no back pressure on the pumps and the swing check just swings out the way.
Truly a superb piece of kit, it will fit any 1.5 inch or 2 inch and is solvent weld also. Reducing sleeves can also be glued in the socket unions to use these flapper valves with normal Black Solvent Waste Pipe.
£40.49 – £62.09Price range: £40.49 through £62.09 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

Water Meter
Water Meter
Watermeter, design with anti-condensation 5-roll counter:
– Cold water up to 30°C (short period 50°C). – Horizontal assemble.
– Class: horizontal: B. – Max. operational pressure: 16 bar.
– Especially suited for a water meter- wells.
– Widely useful, e.g. ideal for camping sites.

110mm Clamp Saddle
110mm Clamp Saddle
Why use 110mm Clamp Saddle ?
The choice of which type of pipework to use has always been a dilemma.
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- metric Pressure Pipe
- imperial Pressure Pipe
- black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£11.69 – £11.96Price range: £11.69 through £11.96 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

3 Way Valve 63mm
3 Way Valve 63mm
Why use a 3 Way Valve?
The choice of which type of pipework to use has always been a dilemma.
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- metric Pressure Pipe
- imperial Pressure Pipe
- black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky they last thing you want it your bottom drain line leaking after all your hard work. Building your pond and is only a cost saving exercise.and the added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the rite pipe work for your project.

Black Waste 40mm Dildo Pickup Strainer
Black Waste 40mm Dildo Pickup Strainer
The Black Waste 40mm Dildo Pickup Strainer can be used alongside foam blocks to create a final polishing stage. When larger flow rates are required they can be used in a manifold configuration using 40mm Solvent Weld fittings (Sold separately).
The Black Waste 40mm Dildo Pickup Strainer can also be used as a strainer cage to prevent fish or filter media from entering the pipework.
The Black Waste 40mm Dildo Pickup Strainer fits into 40mm Solvent Weld pipe fittings.
Black Waste 40mm Dildo Pickup Strainer
- Overall length 205mm
- Overall Width 35mm
There are three main types of pipe work used on koi ponds:
- Metric Pressure Pipe
- Imperial Pressure Pipe
- Black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.

Black Waste Split Connectors
Black Waste Split Connectors
Black Waste Split Connectors should be used in conjunction with Black Waste Solvent Weld Pipe . Demountable Unions are ideal for positioning before and after Pumps, UVC’s and Filters to allow them to be easily removed for maintenance or replacement. Simply unscrew the fittings and the pipe can be separated. These Black Waste Split Connectors are available in 3 sizes 82mm,50mm and 40mm.Solvent Weld pipe and fittings are strong and durable and will provide a permanent connection when secured with Solvent Cement.
82mm Black Waste Split Connector
- Overall length 110mm
- Overall Width 135mm
50mm Black Waste Split Connector
- Overall length 95mm
- Overall Width 70mm
40mm Black Waste Split Connector
- Overall length 85mm
- Overall Width 70mm
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- Metric Pressure Pipe
- Imperial Pressure Pipe
- Black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£2.37 – £15.15Price range: £2.37 through £15.15 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

Black Waste 45 Degree Bends
Black Waste 45 Degree Bends
Black Waste 45 Degree Bends should be used in conjunction with Black Waste Solvent Weld PVC pipework. These Elbows/Bends are great for joining two sections of pipe at a 45 Degree angle with limited friction loss.
Black Waste pipe and fittings are strong and durable and will provide a permanent connection when secured with Solvent Cement. These items are available in 4 different sizes 110mm,82mm,50mm and 40mm.
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- Metric Pressure Pipe
- Imperial Pressure Pipe
- Black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£1.10 – £8.61Price range: £1.10 through £8.61 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

Black Waste 90 Degree Bends
Black Waste 90 Degree Bends
Black Waste 90 Degree Bends should be used in conjunction with Black Waste Solvent Weld PVC pipework. These Elbows/Bends are great for joining two sections of pipe at a 45 Degree angle with limited friction loss.
Black Waste pipe and fittings are strong and durable and will provide a permanent connection when secured with Solvent Cement. These items are available in 4 different sizes 110mm,82mm,50mm and 40mm.
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- Metric Pressure Pipe
- Imperial Pressure Pipe
- Black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£1.10 – £10.10Price range: £1.10 through £10.10 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

Black Waste End Caps
Black Waste End Caps
These Black Waste End Caps should be used in conjunction with Black Waste Solvent Weld Pipe. The Black waste End Caps are used to permanently cap off a plain Black Waste fitting. If capping off Black Waste Solvent Weld Pipe you will need to put a Black Waste Connector onto the Pipe and then insert the Black Waste End Cap. These Black Waste End Caps are available in 4 sizes 110mm,82mm,50mm and 40mm. The 40mm and 50mm are access caps which allow you to unscrew the end.
110mm Black Waste End Cap
- Overall length 555mm
- Overall Width 116mm
- Overall Width of external flange 140mm
82mm Black Waste End Cap
- Overall length
- Overall Width
- Overall Width of external flange
50mm Black Waste End Cap
- Overall length 60mm
- Overall Width 55mm
- Overall Width of external flange 60mm
40mm Black Waste End Cap
- Overall length 40mm
- Overall Width 42mm
- Overall Width of external flange 45mm
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- Metric Pressure Pipe
- Imperial Pressure Pipe
- Black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£2.03 – £4.50Price range: £2.03 through £4.50 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

Black Waste Flanged Tank Connectors
Black Waste Flanged Tank Connectors
Black waste Flanged Tank Connector’s are designed to be used with Solvent Weld Pipe, The Flanged Tank Connectors will create a flush, secure connection through the side of your pond liner or filter. They can take pipe in either side of the Connectors. The Connectors should be fixed in place using a good quality underwater sealer. The connecting black waste Pipework can then be glued into place using Solvent Weld Glue for a permanent connection.
110mm Black Waste Radial Tank Connector
- Outside diameter 200mm
- Total depth 95mm – 85mm
110mm Black Waste Flanged Tank Connector
- Outside diameter 200mm
- Total depth 85mm
82mm Black Waste Flanged Tank Connector
- Outside diameter 155mm
- Total depth 75mm
50mm Black Waste Flanged Tank Connector
- Outside diameter 115mm
- Total depth 60mm
40mm Black Waste Flanged Tank Connector
- Outside diameter 115mm
- Total depth 60mm
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- metric Pressure Pipe
- imperial Pressure Pipe
- black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£4.73 – £10.13Price range: £4.73 through £10.13 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

Black Waste Male-Male Joiners
Black Waste Male-Male Joiners
Black Waste Male-Male Joiners are used for joining two fittings of equal size together such as Bends, Tee’s or Sockets. They a great alternative to purchasing a length of pipe when only a flush joint is required.
Solvent Weld pipe and fittings are strong and durable and will provide a permanent connection when secured with Solvent Cement. These items are available in 2 different sizes 50mm and 40mm.
50mm Black Waste Male-Male Joiner
- Overall length 50mm
- Overall Width 55mm
40mm Black Waste Male-Male Joiner
- Overall length 50mm
- Overall Width 43mm
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- Metric Pressure Pipe
- Imperial Pressure Pipe
- Black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£1.20 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

Black Waste Reducers
Black Waste Reducers
Black Waste Reducers should be used in conjunction with Solvent Weld PVC pipework and fittings. These Reducers will fit directly into a pipe fitting of the larger stated size and allow a pipe of the smaller stated size to fit into it. Solvent Weld pipe and fittings are strong and durable and will provide a permanent connection when secured with Solvent Cement. These Black Waste Reducers are available in 3 sizes 110mm-82mm,82mm-50mm and 50mm-40mm.
110mm-82mm Black Waste Reducer
- Overall length 50mm
- Overall Width 110mm
82mm-50mm Black Waste Reducer
- Overall length 45mm
- Overall Width 82mm
50mm-40mm Black Waste Reducer
- Overall length 30mm
- Overall Width 55mm
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- Metric Pressure Pipe
- Imperial Pressure Pipe
- Black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£1.08 – £3.85Price range: £1.08 through £3.85 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

Black Waste Straight Connectors
Black Waste Straight Connectors
Black Waste Straight Connectors should be used in conjunction with Solvent Weld Black Waste pipework. These Straight Connectors/Joiners are used to join 2 pieces of Solvent Weld Pipe together. Solvent Weld pipe and fittings are strong and durable and will provide a permanent connection when secured with Solvent Cement. These items are available in 4 different sizes 110mm,82mm,50mm and 40mm.
110mm Black Waste Straight connector
- Overall length 105mm
- Overall Width 120mm
82mm Black Waste Straight Connector
- Overall length 90mm
- Overall Width 90mm
50mm Black Waste Straight Connector
- Overall length 60mm
- Overall Width 60mm
40mm Black Waste Straight Connector
- Overall length 55mm
- Overall Width 50mm
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- Metric Pressure Pipe
- Imperial Pressure Pipe
- Black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£1.10 – £5.81Price range: £1.10 through £5.81 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

Black Waste Tee Pieces
Black Waste Tee Pieces
Black Waste Tee Pieces should be used in conjunction with Solvent Weld PVC pipework. These Tee Pieces are ideal for use when splitting the flow is required.
Solvent Weld pipe and fittings are strong and durable and will provide a permanent connection when secured with Solvent Cement. These items are available in 4 different sizes 110mm,82mm,50mm and 40mm.
110mm Black Waste Tee
- Overall length 235mm
- Overall Width 180mm
82mm Black Waste Tee
- Overall length 190mm
- Overall Width 140mm
50mm Black Waste Tee
- Overall length 130mm
- Overall Width 95mm
40mm Black Waste Tee
- Overall length 110mm
- Overall Width 80mm
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- Metric Pressure Pipe
- Imperial Pressure Pipe
- Black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£1.41 – £15.68Price range: £1.41 through £15.68 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

Black Waste Threaded Tank Connectors
Black Waste Threaded Tank Connectors
Black Waste Threaded Tank Connectors should be used in conjunction with Solvent Weld pipework. Threaded Tank Connectors provide a secure, watertight way to connect Solvent Weld Pipework through the side wall of a filter box or water tank. Black Waste Threaded Tank Connectors are unique in that they accept the same size Solvent Weld Pipe on either side of the fitting. The connecting Solvent Weld Pipework can then be glued into place using Solvent Weld Glue for a permanent connection.
110mm Black Waste Threaded Tank Connector
- Outside diameter 170mm
- Total depth 80mm
50mm Black Waste Threaded Tank Connector
- Outside diameter 80mm
- Total depth 70mm
40mm Black Waste Threaded Tank Connector
- Outside diameter 60mm
- Total depth 65mm
40mm With 1.5″ Thread Black Waste Threaded Tank Connector
- Outside diameter 70mm
- Total depth 55mm
There are three main types of pipe work used on koi ponds:
- metric Pressure Pipe
- imperial Pressure Pipe
- black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£2.97 – £13.90Price range: £2.97 through £13.90 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

Double Union Flapper Non Return Valve
Double Union Flapper Non Return Valve
Very Reliable Double Union Flapper Non Return Valve, this Double Union Flapper Non Valve has minimum resistance also with the advantage of waste particules that can be removed by unscrewing the double union fittings.
The Double Union Flapper Non Return Valve provides a simple means of preventing backflow in pipe work where this would be undesirable i.e in pumped systems or where Elecro heaters are fitted in line.
This Double Union Flapper Non Return Valve (swing check) Valve is probably unique in its design and is the first we have been able to find where the valve can be viewed for periodic cleaning etc ..
The Flapper type non return valves create no back pressure on the pumps and the swing check just swings out the way.
Truly a superb piece of kit, it will fit any 1 inch, 1.5 inch, 2 inch and 3 inch imperial pressure pipe and is solvent weld also. Reducing sleeves can also be glued in the socket unions to use these flapper valves with normal Black Solvent Waste Pipe.
3″ Double Union Flapper Non Return Valve
- Overall length 335mm
- Overall Width 150mm
2″ Double Union Flapper Non Return Valve
- Overall length 250mm
- Overall Width 110mm
1.5″ Double Union Flapper Non Return Valve
- Overall length 210mm
- Overall Width 80mm
1″ Double Union Flapper Non Return Valve
- Overall length 170mm
- Overall Width 60mm
At Cotswold Koi we understand The importance of pipe work, mistakes made in pipework are one of the most common we come across and can be very costly and hard to change at a later date.
There are three main types of pipe work used on koi ponds:
- Metric Pressure Pipe
- Imperial Pressure Pipe
- Black waste pipe
The use of anything other than pressure pipe and fittings for both gravity and pressure lines is risky, the last thing you want is your bottom drain line leaking after all your hard work building your pond and is only a cost saving exercise, The added security and peace of mind that Pressure Pipe brings is well worth the extra cost. Unfortunately the use of pressure pipe and fittings in the past has simply been too expensive for the majority of Koi keepers, despite it being the preferred choice. here at Cotswold Koi we are looking to bring you a full range of pipe fittings for every occasion.
we are happy to provide assistance, should you need it, please Contact Us if you need assistance in choosing the right pipe work for your project.
£31.46 – £156.59Price range: £31.46 through £156.59 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

Flexible 90 Elbows
Flexible Elbows
These Flexible Elbows are used by professionals nationwide. These high quality flexible couplings let you connect all common household drain, waste, and vent pipes quickly and easily without using special tools or fittings. They’re the ideal replacement for fittings cut out at the joint during alteration or repair. These connectors are easily installed by tightening the 300 series stainless clamps. Made from flexible polyvinyl chloride these connectors fit cast iron, steel, plastic, cooper and lead. These Flexible Elbows have earned a reputation for consistent, superior performance and you can have full confidence in their quality and reliability.
4″ Flexible Elbow
- External diameter 130mm
- Internal diameter 115mm
- Overall length 210mm
3″ Flexible Elbow
- External diameter 100mm
- Internal diameter 87mm
- Overall length 200mm
2″ Flexible Elbow
- External diameter 70mm
- Internal diameter 60mm
- Overall length 135mm
1.5″ Flexible Elbow
- External diameter 60mm
- Internal diameter 48mm
- Overall length 115mm
Benefits:
- Exceptionally flexible and extra long.
- Ideal for limited space connections.
- Rustproof stainless steel clamps.
- Quick and simple connection.
£7.19 – £17.99Price range: £7.19 through £17.99 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page

Flexible Adaptors
Flexible Adaptors
These flexible adaptors are used by professionals nationwide. These high quality pipe adaptors are made of tough elastomeric polyvinyl chloride which makes them strong, resilient and unaffected by most conditions. They are also resistant to chemicals, ultraviolet rays, and fungus growth due to the specially formulated properties of the material.
These flexible pipe adaptors are supplied with 300 series stainless steel clamps, which are corrosion resistant and rustproof. Additional band slots have been added for greater flexibility and the clamps are specially designed for greater sealing efficiency. These couplings adapt to different types of pipe; plastic, copper, steel or lead to cast iron, plastic, copper, steel or lead. Installs easily with a screwdriver, nut driver, or socket wrench. No special tools needed! These flexible pipe adaptors have earned a reputation for consistent, superior performance and you can have full confidence in their quality and reliability.
6″- 4″ Flexible Adaptor
- External diameter 185mm – 130mm
- Internal diameter 170mm – 115mm
- Overall length 150mm
4″ – 3″ Flexible Adaptor
- External diameter 130mm – 100mm
- Internal diameter 115mm – 87mm
- Overall length 100mm
4″ – 2″ Flexible Adaptor
- External diameter 130mm – 73mm
- Internal diameter 115mm – 60mm
- Overall length 100mm
4″ – 1.5″ Flexible Adaptor
- External diameter 130mm – 60mm
- Internal diameter 115mm – 48mm
- Overall length 105mm
3″ – 1.5″ Flexible Adaptor
- External diameter 105mm – 60mm
- Internal diameter 90mm – 50mm
- Overall length 100mm
3″ – 2″ Flexible Adaptor
- External diameter 100mm – 70mm
- Internal diameter 87mm – 60mm
- Overall length 100mm
2″ – 1.5″ Flexible Adaptor
- External diameter 70mm – 60mm
- Internal diameter 60mm – 48mm
- Overall length 85mm
1.5″ – 1.25″ Flexible Adaptor
- External diameter 60mm – 50mm
- Internal diameter 48mm – 40mm
- Overall length 85mm
Benefits:
- For sewer, drain, waste, and vent piping.
- Positively seals any drain connection.
- Rustproof stainless steel clamps.
- Quick and simple connection.
£4.49 – £22.49Price range: £4.49 through £22.49 inc. VAT Select options This product has multiple variants. The options may be chosen on the product page
