1.Good flexibility at low temperature 2.Clean,dust-free,fast and easy installation 3.Low thermal conductivity 4. ... 's. They are also formaldehyde free, low VOCs,fiber free, dust free and resistant to mold and mildew.Kingflex outperforms in ... (mm)1/4",3/8",1/2",3/4",1",1-1/4",1-1/2",2"(6,9,13,19,25,32 ... ID to 168)lengthft(m)6',6.82'(1.83,2) About the Thermal Insulation Tube inner size ≥89mm, we suggest ...