Itp Pipe Insulation 3/4 " X 1/2 " Wall X 6 ' Normal Id. Iron Pvc : 1/2 " Id. 3/4" x 1/2" wall x 6 ft Rubber pipe insulation reduces energy cost Ideal for air conditioning and refrigeration applications Wide temperature range - can be used effectively in temperatures ranging from -70 to 257 degrees F. *R Value 2.9 *Normal ID: 7/8" ID Normal ID Copper Pipe:3/4"ID Normal ID Iron PVC: 1/2" ID