Pipe Fitting Insulation, Insulation Material Fiberglass, Installation Style Slit, Inside Diameter 1/2 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 Pipe Size 1/2 in, Standards ASTM C358, ASTM C547, ASTM E84, Outside Diameter 2 1/2 in