Crystal clear PVC compound formulated with ingredients in compliance with applicable FDA requirements, meets USDA, 3A and NSF criteria and California Proposition 65. Reinforced with spiraled polyester yarn and multiple longitudinal polyester yarn (including orange yarns for identification) to reduce elongation under pressure. Constructed with non-toxic compounds. NSF-51 and NSF-61 certified material. Crystal clear- allows visual confirmation of product flow. Longitudinally-reinforced to reduce elongation under pressure. Lightweight. Self-extinguishing. Non-marking. Silicone-free. Non-conductive. One-piece lengths. Resistant to chemicals