Kingflex rubber foam K2 pipe BS476 ,UL94,ASTM E84 certificated low thermal conductivity smoke ... ) sheetIn(mm)1/8”, 11/4”, 3/8”, 1/2”, 5/8”, 3/4”, 1”, 1-1/4”, 1-1/2 ... ) rollIn(mm)1/8”, 11/4”, 3/8”, 1/2”, 5/8”, 3/4”, 1”, 1-1/4”, 1-1/2 ... , 8 (30, 15, 10, 8, 7, 6, 4, 3, 2.5)- close cell heat insulation K2 rubber foam pipe for air conditioner