Self-Seal Insulation, Rubber, 2-1/8"x 1/2" Wall, Aerocel, Mfr#: 728-AC21812SSPT

Self-Seal Insulation, Insulation Material EPDM, Installation Style Slit with Adhesive and Flap, Inside Diameter 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 Copper Tube Size 2 1/8 in, Flame Spread Index 25, Smoke Developed Index 50, Foam Cell Type Closed, Plenum Rating Plenum Rated, Flexibility Flexible, For Tube Outside Diameter 2 1/8 in