Hydro Master Plastic Sump Pump Check Valve With No Hub Connection 3 Inch.

Amazon.com Price: $69.99 (as of 02/01/2024 23:58 PST- Details)

Plastic
3″ x 3″ Slip-on check valve for most sump pumps
Made of strong ABS body and EPDM rubber on both ends to prolong service life