Description
4 mm Air Line Non Return Valves
4 mm Air Line Non Return Valves, these 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 4 mm 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.
Fits all the 4 mm Airline
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How are shipping works
We have several different ways of shipping available on our website for you to select when you go through to checkout
1, We use Evri for our Economy service this service can take between 2 and 5 day This service starts from £4.90
This is because Evri collect from us on a Monday and Thursday only which will be a Tuesday and Friday delivery to you
2, We use DPD for our premium/standard service which is next working day delivery This service prices start from £7.95
This is collected from us Monday through to Friday This is NOT a Guaranteed next day delivery service however it is a overnight service and is quite often delivered to you the next day, excluding remote areas
3, We use Dx Freight for our standard large service for things like Pipe lengths and larger items This service is £19.95
This is on a next working day delivery and is Monday through to Friday.
4, We use APC for our Fish delivery service This service is £35
This is an overnight service Koi will be scheduled to arrive between 8.00am – 12:00 midday.
You also MUST be in to sign for the koi.
Delivery days are Wednesday, Thursday & now Fridays and will always be pre arranged with you
5, Some larger items and bespoke items are dropped shipped this is to speed up delivery
6, We also ship from our supplier from warehouse again this is to speed up delivery
7, We also offer Free Delivery on orders over £100 excluding lengths of pipes and live fish
Lengths of pipe are sent with DX and have a price of £19.95
Live fish are sent with APC and have a price of £35.00
All our shipping company’s do give us tracking information that you should receive by email this includes any orders we drop ship.
George Shepherd (verified owner) –
Curtis (verified owner) –
Rene P. (verified owner) –
Does what it’s supposed to without fuss.