Kuri Tec Polywire Plus series hose is a unique crystal clear PVC hose suitable for applications requiring a vacuum hose with higher pressure capability or as a pressure hose with vacuum capability. Crystal clear PVC compound reinforced with high tensile yarns and helically-wound spring steel wire. The inner food contact surface is made with PVC compound. Wire helix reinforcement prevents kinking or collapsing hose diameter will not expand under normal rated working pressures. 29.9 inch Hg vacuum rating at 70 degrees F. Electrogalvanized helical steel wire can be used for static dissipation. Yarn reinforcement provides higher working pressure. Heavy duty construction prevents hose outside diameter from expanding and inside diameter from collapsing. Crystal clear allows visual confirmation of product flow glass-smooth interior reduces material buildup. Inner contact surface material is NSF certified for food applications. It also meets other criteria. Resistant to chemicals. Self-extinguishing. Non-marking. Non-toxic. Silicone-free. Applications: Pressure and vacuum applications which require excellent kink resistance, ideal for applications which require the hose to withstand both high vacuum and pressure, water transfer, liquid food transfer. Working pressure: 225 psi at 70 degrees F. Compliance: 3A, FDA, NSF, RoHS, USDA.