The 4 Millimeters 5/32 Blue Polyurethane NSF51 100 Feet is a high-quality, flexible, and durable tubing designed for food, beverage, pneumatic, and fluid transfer applications. This tubing meets National Sanitation Foundation (NSF) 51 certification, ensuring it is safe for food and beverage contact. NSF 51® Polyurethane (PUR) Shore A 98 tubing is a strong, lightweight, and flexible option known for its excellent resistance to abrasion, cold, chemicals, and kinking. Made with high-quality ether-based materials, it offers superior durability, tight OD tolerances, and easy installation while meeting NSF, FDA, RoHS, and UL standards.