Supply Valve Body & Piston Assembly

This brass valve body and piston is the mechanical component of the Distilled Water, Buffer, EtOH78 and EtOH95 valves.  It includes the Valve Seat (Z132), Valve Spring (Z135) and Viton O-ring (Z133).  This is replaced if corrosion has caused pitting or imperfections in the sealing surface within the brass valve, and does not require rewiring of the solenoid valve.