Pipe Fitting Insulation, Insulation Material Fiberglass, Installation Style Slit, Inside Diameter 4 1/8 in, Wall Thickness 1 in, Form Tee, Minimum Operating Temperature 0 Degrees F, Maximum Operating Temperature 450 Degrees F, R Value 5, Color White, For Tube Outside Diameter 4 1/8 in, Standards ASTM C396, ASTM C547, ASTM E84, Outside Diameter 6 1/8 in. This item has been restricted from sale in the following state (s): []