Earl's took the same inner tubing of their Kevlar® hose and covered it with a high tensile grade 304 stainless steel and PVC Smoke Coated outer covering to reduce chafing. You still get all of the same flow rate and flexibility advantages of the Kevlar® hose but with additional protection. Earl's carbon-lined inner tubing (for static dissipation) is a smooth bore with large ID for maximum flow and convoluted exterior support for incredible flexibility. Earl's Ultra-Flex stainless is 40% lighter and has an average of 14% larger ID than their premium stainless braided rubber hose. Earl's PTFE resin has a large range of applications: Fuel, Oil, Water, Methanol, and Air as well as a very high vacuum rating - 29Hg. The new stainless hose also accepts all of the same hose ends and crimp collars made for the Earl's Kevlar® Ultra-Flex line. This means that the same crimping tool and dies used for the Kevlar® hose can be used with the new stainless, so your Earl's Universal crimping tool and dies are all you need for all of your high-end line assemblies. (All trademarks are property of their respective owners.)