Fernco CV200 Sump Pump Check Valve, 2 in, Thermoplastic Body

Sump Pump Check Valve is a full-flow, flapper design that eliminates back-flow and wear on pipe. Durable, thermoplastic body. For 1-1/4 in or 1-1/2 in pipe to 1-1/4 in or 1-1/2 in pipe.