Pipe Fitting Insulation, Insulation Material Fiberglass, Installation Style Slit, Inside Diameter 4 in, Wall Thickness 2 in, Form 90 Degrees Elbow, Minimum Operating Temperature 0 Degrees F, Maximum Operating Temperature 450 Degrees F, R Value 10, Color White, For Pipe Size 4 in, Standards ASTM C330, ASTM C547, ASTM E84, Outside Diameter 8 in. This item has been restricted from sale in the following state (s): []