Pipe Insulation, Insulation Material Buna-N Rubber/PVC, Installation Style Unslit, Inside Diameter 2 5/8 in, Wall Thickness 1 in, Overall Length 6 ft, Minimum Operating Temperature -297 Degrees F, Maximum Operating Temperature 220 Degrees F, Jacket Material Unfaced, Color Black, R Value 5.8, Form Tube, For Copper Tube Size 2 5/8 in, For Pipe Size Not Applicable, Flame Spread Index 56, Smoke Developed Index 81, Foam Cell Type Closed, Plenum Rating Plenum Rated, Flexibility Flexible