Valve Insulation Heater, Cover Type Valve Jacket, For Fitting Type Tee, Wye, Jacket Material Silicone, Insulation Material Mineral Wool, Maximum Ambient Temperature 200 Degrees F, Cover Width 6 in, Cover Length 12 in, Thickness 3 in, Color Gray, Fastening System Lacing Anchor and Wire, For Minimum Circumference 0 in, For Maximum Circumference 7 in, R Value 0.48, Operating Voltage 120V