Brand: GC Valves Item: Rebuild kit For Use With: NS301 series valves ending BE7 Kit Includes: Plunger-seat disc-spring assembly, plunger tube, operator O-ring and body O-ring GC Valves rebuild kit, for use with NS301 series valves ending BE7, includes plunger-seat disc-spring assembly, plunger tube, operator O-ring and body O-ring.