Check Valve Assy Kit; Viton (for use with P/N 40-525)

Check Valve Assy Kit; Buna (for use with P/N 40-524)

Diaphragm Kit with Piston; Viton

Check Valve Assy Kit; Buna (for use with P/N 40-522)

Diaphragm Kit with Piston; Buna