Photo 1 of 1 1/2 Inch Sump Pump Check Valve-Silent Check Valve with Spring-Loaded Flapper, Check Valve for Backflow Prevention, Includes Steel Clamps Fit 1-1/2? Pipe

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Photo 1 of 1 1/2 Inch Sump Pump Check Valve-Silent Check Valve with Spring-Loaded Flapper, Check Valve for Backflow Prevention, Includes Steel Clamps Fit 1-1/2? PipePhoto 2 of 1 1/2 Inch Sump Pump Check Valve-Silent Check Valve with Spring-Loaded Flapper, Check Valve for Backflow Prevention, Includes Steel Clamps Fit 1-1/2? Pipe