Description 1-1/2″ male pipe thread, plastic inline sump check valve, connects directly into sump pump discharge, constructed from durable thermoplastic material, for permanent installation, 1-1/2″ pvc slip coupler can be pvc welded directly to check valve, for temporary installation, flexible discharge hose can be clamped to the 1-1/4″ barbs. 1-1/2 in. male NPT thread connects directly into sump pump discharge For permanent installation, 1-1/2 in. PVC slip coupler can be PVC welded directly to check valve For temporary installation, flexible discharge hose can be clamped to the 1-1/4 in. barbs Swing style flapper, not spring loaded Unique valve body allows for nearly 100% flow
