Superior Pump 99555 Universal Check Valve, Plastic, Fits all 1-1/4-Inch or 1-1/2-Inch MIP or FIP Includes one universal check valve and two adapters Made from durable ABS plastic High quality Nitril-Bruna N seal Fits all 1-1/4 inch and 1-1/2 inch MPT and FPT Universal design works with multiple applications Package includes one universal check valve and two adaptors Made from durable ABS plastic High quality nitril-bruna N seal Thread sealant or tape is recommended to be used when installed