GENERAL PURPOSE DUCTINGDescription: Constructed of thermoplastic rubber and reinforced with a wire helix. GP ducting is the most versatile general-purpose exhaust hose. No cement, solvents, chemicals, adhesives or glues are used in the manufacturing process. GP has a superior chemical resistance. GP can be manufactured in other colors. GP ducting can also be supplied with color strips. Temperature: -60 degrees F to +275 degrees FStandard color: BlackStandard lengths: 25 ft. & 50 ft.Sizes ID's: 2", 2-14", 2-12", 3", 3-12", 4", 4-12", 5", 5-12", 6", 7", 8", 9", 10", 12", 14", 16", 18", 20"