The NSF 51 Rated CO2 Fill Hose is a high-quality product designed for use in liquid CO2 transfer in beverage applications. This Milcarb Fill Hose is NSF-51 approved, ensuring that it meets rigorous safety standards. It is available in 5' increment assemblies, bulk rolls of 250', or fill kit assemblies with a vent line attached. The 5/8” swivel fittings and 2000 psi pressure rating make it easy to use and highly durable. The FDA accepted polyolefin core tube adds another level of safety and reliability to this top-of-the-line product.