Ball Valves Insulation Cover Product Type Ball Valves Insulation Cover Operating Temperature - Maximum 300 Degrees F Operating Temperature - Minimum -40 Degrees F Includes Insulation Cover Compatible with Manufacturer Model Number A 18937 A 18938 A 18939 A 18940 A 18941 A 18942 A 18943 A 18944 Compatible with Brand Cyclemaster Length 8 9/16 in