Air Handling PLUS flex hose has excellent durability with reinforced construction, which is designed to stand up to years of use. Hose is designed as an excellent replacement to older polyester neoprene hoses and comes in a distinct royal blue, designed for increased visibility in both smaller as well as industrial settings. Temperature range is -60 to 275°F. Construction is thermoplastic rubber with coated polyester fabric reinforced with a wire helix. Standard lengths are 25 feet with diameters from 3-8". Air Handling Systems 5 Lunar Dr. Woodbridge, CT, 06525