The Edelbrock/Russell ProFlex Hoses are constructed with a stainless steel outer braid that resists abrasion and corrosion. It has a Chlorinated Polyethylene (CPE) synthetic rubber liner with a nylon inner braid to withstand extreme heat conditions. The secondary rubber jacket increases overall flexibility. Its superior bonding eliminates hose fraying when cut. These hoses provide maximum protection and insure total reliability. The unique CPE liner is compatible with all hydrocarbon and alcohol-based fuels, lubricants and additives. These hoses should be used with AN adapter fittings and it comes in pre-packaged rolls of 20 feet.