Ross Controls 250K77 Valve Body Service Kit is a complete rebuild kit for the Ross 21-Series 3/2 poppet valve, designed for a 3/4-inch body with port sizes of 1/2, 3/4, and 1 inch. The kit includes poppets, spindle, and all required gaskets and seals, plus installation instructions for proper disassembly and reassembly to recondition the valve body. It is intended for maintenance of low-temperature Ross 21-Series valves, helping restore sealing integrity and full valve performance.
