Nitrile Rubber Insulation tube, Unslit, Length 1.83, Temp. Range -50 ... to 89mm, thickness 6 to 30mm Nitrile Rubber Insulation tube, Unslit, Length 1.83, Temp. Range -50 ... 89mm, thickness 6 to 30mm Description:HengBao Insulation Tube is a flexible, closed cell and light weight ... contain CFC halogen materials (chlorine, bromine, etc.) and PVC. It is manufactured to be used for air conditioning ...