Kuriyama's Kuri Tec® POLYWIRE® K7130 Series Heavy Wall Food and Beverage Vacuum/Transfer Hose is constructed of PVC with helically-wound spring steel wire reinforcement. The PVC compound is formulated with ingredients in compliance with applicable FDA, USDA, 3A, NSF, UL, USP, and RoHS criteria. The spiral wire reinforcement prevents kinking or collapsing. The crystal clear PVC compound allows for visual confirmation of product flow, and the glass-smooth interior reduces material buildup. Series K7130 is resistant to chemicals and has a compound hardness of 73 on the Shore A hardness scale. This self-extinguishing hose is also non-toxic, non-marking, and silicone free. General applications include full vacuum lines, industrial vacuum pumps, food and beverage dispensing, air and water supply lines, car wash applications, coolant lines, air breathing lines, and deionized water systems.