Stenner Duckbill [Injection Check Valve Santoprene Qty 5] (MCCVDB0) gshop A part like this is

A part like this is useful because it restores a more specialized massage-style jet feel while keeping the visible trim bright and clean-looking at the spa surface

and SP1077 style skimmers

Designed for compatible 3 inch housing applications

The Hayward element gasket is designed for compatible equipment applications where a sealing surface around the element assembly needs replacement

Replacement assembly for compatible 3-port diverter valves

Stenner Duckbill [Injection Check Valve Santoprene Qty 5] (MCCVDB0) gshop A part like this isStenner Duckbill [Injection Check Valve Santoprene Qty 5] is a genuine Stenner Pumps replacement part designed to restore proper check valve sealing and reduce unwanted backflow in chemical feed lines. Chemical feeder systems depend on small connection, valve, and drive components working correctly, and replacing worn parts with the correct Stenner part number helps maintain consistent dosing and dependable system performance. Use part number MCCVDB0