Standard Beer Engine Check Valve 3/8" In To 1/2" Stem Out

Check Valve - 3/8JG In - 1/2" Serrated Outlet Tail

Check Valve (Demand Valve) with 3/8" John Guest IN + 1/2" Serrated Outlet Tail for PVC Hose.

A Check Valve is used in the beer line just before the beer engine to stop the beer flowing forward through the beer engine when there is no demand (pump not being pulled).

If you are going to use this valve to stop siphoning in a none pressurised system in PVC hose you will most probably require the adaptor fitting for the inlet to make this into a barbed tail.