"TUNDRA" PIPE INSULATION *Fits 3/4" Copper Or 1/2" Steel Pipe; R 5.1 *3/4" wall x 6' *Semi-slit *Polyethylene foam *-90to +210 deg. F. *Black *Bulk *R Value 5.155 *Normal ID: 7/8" ID *Normal ID Copper Pipe:3/4"ID *Normal ID Iron/PVC: 1/2"ID