Pipe Insulation Insulation Body Material Closed Cell Foam Type - Pipe Insulation Flexible Wall Thickness - Insulation 1/2 in Insulation Length 6 ft Fits Pipe Size 1/2 in Fits Tube Size 1/2 in Insulation Nominal I.D. 7/8 in Insulation Temp Range -70 Degrees F to 220 Degrees F Insulation Approx R Value 3.0 Insulation Approx K Value 0.23 Color Black