CHECK VALVE ASSEMBLIES         

These check valve assemblies are used inside EasyPro skimmers to bring the flow of water from the pump up to the outlet hole in the back wall of the skimmer.  In an ideal world all pumps would have their outlet at the same height but that is o the case so various height assemblies are needed.  Each assembly includes a check valve which keeps the plumbing line full of water even when the pump is off.  Two styles of check valves are available - one has unions built into the valve, the other uses a rubber coupling as the disconnect point.  Please see chart below for the correct pump/skimmer check valve.

Please specify which pump you are using so the height of the CVA will be correct!