Self-Seal Insulation, Rubber, 4-1/2"x 1/2" Wall

Self-Seal Insulation, Insulation Material EPDM, Installation Style Slit with Adhesive and Flap, Inside Diameter 4 1/2 in, Wall Thickness 1/2 in, Overall Length 6 ft, Minimum Operating Temperature -297 Degrees F, Maximum Operating Temperature 257 Degrees F, Facing Material Unfaced, Color Black, R Value 3, Form Tube, For Pipe Size 4 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 4 1/2 in