To avoid stagnant spots in your pond and encourage the dissemination of oxygen throughout the water a Pond Air Pump is vital.
Used in conjunction with an airline tube and air stone the pump creates a steady stream of bubbles which agitates the surface of the water, allowing oxygen to enter the pond. Of course, well oxygenated water is healthy water and live beings in the pond will thrive. we have a wide range of pond air pumps and accessories to ensure that the water in your pond is beautifully healthy, you can be confident of the best performance every time.
Accessories are key too, and our branded airline, air stones and connectors all provide the best service possible and ensure that your pond runs smoothly.
1/4″ Pressure Gauge
1/4″ Pressure Gauge
This 1/4″ Pressure gauge is optimized to measure up to 6 bar in a durable plastic case. Its accurate readings and accuracy ensure reliability and long-term performance. Read more
10mm Airline Fittings
10mm Airline Fittings
These 10mm Airline Fittings will help divide or add airline and air stones to your system. Air line of course, like the air stones, is essential for any Koi or pond keeper, and allows the air being generated by the Air Pump, to be delivered to the point where it is required. Read more
Fits all the 10mm Airline.
12mm 90 Degree Bend
12mm 90 Degree Bend
The 12mm Airline Fittings are normally used with semi rigid airline. The fittings listed are 12mm Diameter and by pushing the airline inside the fittings it will create a airtight seal, if you want to change your air line at any time simply pull back the Blue ring and pull the airline out from the fitting. Air line of course, like the air stones, is essential for any Koi or pond keeper, and allows the air being generated by the Air Pump, to be delivered to the point where it is required. Read more

12mm Equal Y Piece
12mm Equal Y Piece
The 12mm Airline Fittings are normally used with semi rigid airline. The fittings listed are 12mm Diameter and by pushing the airline inside the fittings it will create a airtight seal, if you want to change your air line at any time simply pull back the Blue ring and pull the airline out from the fitting. Air line of course, like the air stones, is essential for any Koi or pond keeper, and allows the air being generated by the Air Pump, to be delivered to the point where it is required. Read more
12mm Straight Connector
12mm Straight Connector
The 12mm Airline Fittings are normally used with semi rigid airline. The fittings listed are 12mm Diameter and by pushing the airline inside the fittings it will create a airtight seal, if you want to change your air line at any time simply pull back the Blue ring and pull the airline out from the fitting. Air line of course, like the air stones, is essential for any Koi or pond keeper, and allows the air being generated by the Air Pump, to be delivered to the point where it is required. Read more
12mm Tee Piece
12mm Tee Piece
The 12mm Airline Fittings are normally used with semi rigid airline. The fittings listed are 12mm Diameter and by pushing the airline inside the fittings it will create a airtight seal, if you want to change your air line at any time simply pull back the Blue ring and pull the airline out from the fitting. Air line of course, like the air stones, is essential for any Koi or pond keeper, and allows the air being generated by the Air Pump, to be delivered to the point where it is required. Read more
12mm x 10mm Airline
12mm x 10mm Airline
The 12mm x 10mm Airline is perfect to use with our 12mm push fit fittings. Air line of course, like the air stones, is essential for any Koi or pond keeper, and allows the air being generated by the Air Pump, to be delivered to the point where it is required. Read more
Available in 30 meter rolls or sold by the meter all meter bits are sent as one whole piece
3/8″ Air Tap With Connection
3/8″ Air Tap With Connection
The 3/8″ Air Tap and Connection is a type of hose fitting specifically designed for use in aquatic pump systems. This air tap and connection is made from a durable and corrosion-resistant material and is designed to connect a hose or pipe to an air supply in a secure and watertight manner. The 3/8-inch air tap and connection is compatible with standard 3/8-inch hoses and is easy to install and use. It is a reliable and durable choice for use in aquatic pump systems, and is an essential component of any toolkit. The DY 118 3/8″ Air Tap and Connection is a must-have for anyone who works with aquatic pumps or related systems. It is a convenient and cost-effective way to connect a hose or pipe to an air supply, and is an essential component of any toolkit. Read more

3/8″ BSP Male Thread x 12mm 90 Degree Bend
3/8″ BSP Male Thread x 12mm 90 Degree Bend
The 12mm Airline Fittings are normally used with semi rigid airline. The fittings listed are 12mm Diameter and by pushing the airline inside the fittings it will create a airtight seal, if you want to change your air line at any time simply pull back the Blue ring and pull the airline out from the fitting. Air line of course, like the air stones, is essential for any Koi or pond keeper, and allows the air being generated by the Air Pump, to be delivered to the point where it is required. Read more

3/8″ BSP Male Thread x 12mm Connector
3/8″ BSP Male Thread x 12mm Connector
The 12mm Airline Fittings are normally used with semi rigid airline. The fittings listed are 12mm Diameter and by pushing the airline inside the fittings it will create a airtight seal, if you want to change your air line at any time simply pull back the Blue ring and pull the airline out from the fitting. Air line of course, like the air stones, is essential for any Koi or pond keeper, and allows the air being generated by the Air Pump, to be delivered to the point where it is required. Read more

3/8″ Female Thread Mini Ball Air Valve
3/8″ Female Thread Mini Ball Air Valve
The 3/8″ Female Thread Mini Ball Air Valve work well with the 12mm stud connectors allowing you to use it with the airline. Air line of course, like the air stones, is essential for any Koi or pond keeper, and allows the air being generated by the Air Pump, to be delivered to the point where it is required. Read more
8mm Air Line Non Return Valves
8mm Air Line Non Return Valves
The 8mm Air Line Non Return Valves simply fit in line and prevent water from the system back siphoning back into the Air Pumps if the power fails or when maintaining the system and the power is switched off. These simple 8mm Air Line Non Return Valves (check valves) are very important if you cannot mount your air pump above the water level in your system. Remember accidents can and do happen, don’t let it happen to you for the sake of a few pence, always have a few on hand as you never know when you may need them. Read more
Fits all the 8mm Airline
Air Pump Accessory Kit
Air Pump Accessory Kit
At Cotswold Koi we have put together this Air Pump Accessory Kit to help get the right products together. This Kit includes 4mm airline a manifold and economy air stones. This kit is suitable for air pumps 75 litres or less. Read more
Kit Includes:
- 6 x Ceramic round air stones 50mm
- 1 x 4mm silicon airline 25m
- 1 x 6 way stainless steel manifold
Air Pump Manifolds
Air Pump Manifolds
The Air Pump Manifolds is a type of plumbing fixture specifically designed for use in aquatic pump systems. This manifold is made from a durable and corrosion-resistant material, and is designed to allow multiple hoses or pipes to be connected together in a single location. The manifolds are for use with 4mm airline. The Air Pump Manifolds has ports, or openings, which can be used to connect hoses or pipes of various sizes. It is easy to install and use, and is a reliable and durable choice for use in aquatic pump systems. Read more
These are available in 10, 8 and 6 way
Air Pump Rubber Connector
Air Pump Rubber Connector
This Rubber elbow will allow you to connect your air pump to an airline manifold using the 2 clips included. Can be used for 90 degree or straight (if cut). Replacement for original supplied with air pumps. Read more
Kit Contains:
- 1x Original ‘elbow’ black rubber hose
- 2x spring clip retainers.
Airline Taps
Airline Taps
The Airline Taps are suitable for use with almost all makes and models of air pumps and airline. The taps allow you to control and vary the distribution of air to air stones. The valve can be closed or partially shut, enabling you to isolate or restrict any air-flow in your pond. Read more
Available in 8mm, 10mm and 12mm
Brass Non-Return Valves
Brass Non-Return Valves
Non-return value (Brass), Hose Tail 8mm to fit 3/8″ valves, Hose Tail 10mm to fit 3/8″ valves simply fit in line and prevent water from the system back siphoning back into the Air Pumps if the power fails or when maintaining the system and the power is switched off. These simple 8/10mm Air Line Non Return Valves (check valves) are very important if you cannot mount your air pump above the water level in your system. Remember accidents can and do happen, don’t let it happen to you for the sake of a few pence, always have a few on hand as you never know when you may need them. Read more
Please note you will require two hose tails for the non return valve which are sold separately
Burtons Air Diffusers
Burtons Air Diffusers
Burtons Air Diffusers are a perfect addition to any pond to increase the level of oxygen within your pond. The Burtons Air Diffusers have been manufactured with the wellbeing of your fish in mind to help reduce any chance of damage occurring to your fish. With the additional weight it ensures it will not float and easy to use with a low or large flow air pump. They’re perfect for providing air to your pond. The porous air hose allows fine micro bubbles to pass through evenly and without any restriction. Read more
Available In 2000mm, 1500mm, 1000mm and 500mm
Ceramic Flat Air Discs
Ceramic Flat Air Discs
The Ceramic Flat Air Discs create masses of air and are ideal for use in all ponds and with large air pumps. The air discs large surface area will be ideal for delivering high amounts of oxygen into a pond or quarantine tank. Excellent quality grey/blue air stones, hardened with an aluminium alloy at high temperature (1300°C). The stones are very porous and produce very fine air bubbles for optimal aeration. Corrosion-free and shock-resistant. Suitable for oxygen, air, seawater and ozone in ponds, aquaculture, ozone generators and medical applications. Read more
Available In:
- 200mm Diameter with 8mm (3/8th) inlet connection
- 132mm Diameter with 4-6mm inlet connection
Evolution Aqua Sinking Airline
Evolution Aqua Sinking Airline
This new air line simply drops to the bottom of the pond without the need for additional weights. The black air line is designed to be completely discreet whilst making for a tidy installation at the base of the pond. Made from a PVC based compound, the air line has a high resistance to UV light and resists kinking and cracking. Read more
Standard wall thickness on all hose is 4mm.
Available in 4mm, 8mm and 10mm.