Valve Rebuild Kit Product Type Valve Repair Kit Includes Bypass Valve Bonnet Bypass Valve Piston Bypass Valve Spring O-Ring Compatible with Series ET71 Material Multiple Components Operating Temperature - Maximum 180 Degrees F Operating Temperature - Minimum 60 Degrees F Compatible with Manufacturer Model Number ET71-1 Compatible with Grainger Part Number 444P83 Compatible with Brand Controls Valve Type Mixing Valves