Pipe Insulation, Insulation Material Polyethylene, Installation Style Slit with Adhesive, Inside Diameter 2 7/8 in, Wall Thickness 3/8 in, Overall Length 6 ft, Minimum Operating Temperature -160 Degrees F, Maximum Operating Temperature 200 Degrees F, Facing Material Unfaced, Color Black, R Value 1.7, Form Tube, For Pipe Size 2 1/2 in, Flame Spread Index 25, Smoke Developed Index 50, Foam Cell Type Closed, Plenum Rating Plenum Rated, Flexibility Flexible, For Tube Outside Diameter Not Applicable. This item has been restricted from sale in the following state (s): []