Valve Repair Kit Product Type Valve Repair Kit Material Bronze Compatible with Series 1-500XL3HR Operating Temperature - Maximum 140 Degrees F Operating Temperature - Minimum 33 Degrees F Includes (2) Union Gaskets Adjustment Bolt Cartridge Friction Ring High Range Spring Locknut Spring Disc Compatible with Manufacturer Model Number 500XL3 Compatible with Grainger Part Number 787W98 Valve Type Pressure Reducing Valves