Valve Repair Kit Product Type Valve Repair Kit Material Rubber Compatible with Series 212-975 3-975 Operating Temperature - Maximum 180 Degrees F Operating Temperature - Minimum 33 Degrees F Includes Diaphragm O-Ring O-Ring Sensing Line O-Ring Spring Retainer O-Ring Stem O-Ring Stem Guide Seal Ring Spring Compatible with Manufacturer Model Number 975 Valve Type Relief Valves