This part is a Replacement Watkins Water Check Valve that is 3/4"Barb x 3/4" Barb.. This 3/4" water check valve is installed in the inlet side of the circulation pumps plumbing to prevent the...
This part is an Air Check Valve Kit with a 1" Air Check Valve a (4) 3/8" Barb Transistion Manifold with (2) Plugs that can be down to (2) Barbs and a 4