Pipe Insulation, Insulation Material Buna-N Rubber/PVC, Installation Style Unslit, Inside Diameter 2 7/8 in, Wall Thickness 3/4 in, Overall Length 6 ft, Minimum Operating Temperature -297 Degrees F, Maximum Operating Temperature 220 Degrees F, Facing Material Unfaced, Color Black, R Value 4.3, Form Tube, For Pipe Size 2 1/2 in, Flame Spread Index 41, Smoke Developed Index 66, Foam Cell Type Closed, Plenum Rating Plenum Rated, Flexibility Flexible, For Tube Outside Diameter 2 7/8 in. This item has been restricted from sale in the following state (s): []