8mm (3/8) Non-Return Valves

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8mm (3/8″) 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.

Please note you will require two hose tails for the non return valve which are sold separately