The Edelbrock/Russell ProFlex Stainless Steel Braided Hose is made with a stainless steel outer braid that resists abrasion and corrosion. They have a Chlorinated Polyethylene (CPE) synthetic rubber liner with a nylon inner braid that will not collapse under extreme heat, yet is extremely flexible. This hose is compatible with all hydrocarbon and alcohol based fuels, lubricants and additives.