"Rugged yellow polyethylene wall hose construction reinforced with a spring steel wire helix. Intended for liquid suction applications and ideally suited for the removal of fluids and waste materials. All sizes handle a full vacuum. " "Extremely flexible even in sub-zero temperatures. Smooth interior for efficient flow characteristics, miniumum pressure drop, low friction loss, and clogging prevention. " Sleek exterior reduces drag for easy maneuverability. Superior abrasion resistance. Crush-resistant. Resistant to kinking. Made with factory-installed polyweld cuffs.