Jones Stephens I81400 4-1/2" ID (4" IPS) Self-Sealing Black Rubber Pipe Insulation with Overlap Tape, 1/2" Wall Thickness, 24 ft. per CartonJones Stephens I81400 Closed cell flexible elastomeric foam insulation tubes Self Seal (Pre Slit Pre Glued DoubleSeal closure system) for retrofit applications For use on HVAC R, commercial, and industrial process piping and equipment High resistance to moisture vapor intrusion; low thermal conductivity UL GREENGUARD Gold Certified as a low VOC material Sold in carton quantities only Additional Information Material: Rubber Size: 4 1 2" Density: 3 6 lb