POWERTEC 70160 Heavy Duty Anti Static PVC Flexible Dust Collection Hose, 4-Inch x 10-Foot Electrical and surface resistance &lt; 10^9 . Compressible 3:1 Made of high grade PVC with reinforced spring steel in the wall for greater durability Temperature range: -10-DegreeC (14F) - 70-DegreeC (150F); short time up to 80-DegreeC (176F) 4-Inch x 10-Foot long, clear color Flame retardant according to UL94-HB