Earl's PERFORMOFLEX stainless braidprotected synthetic rubber hose is the premium quality racing hose depended on by the top racing teams of every professional sanctioning body in the world. PERFORMOFLEX features an inner liner of synthetic rubber. a partial coverage protective sheath of stainless steel braid is embedded in the liner during manufacturing. The reinforced hose liner is then bonded to a fullcoverage outer protective sheath of high tensile stainless steel wire braid. Tougher than this, hose doesn't get. Yet PerformOFlex, with its inner liner, remains flexible at temperatures between 40 and +300 degrees F. Racing Greats have depended on PERFORMOFLEX hose and SWIVELSEAL hose ends since 1972. PerformOFlex hose is intended for use with SwivelSeal, AutoFit and AutoMate hose ends only. No other Earl's hose ends are intended for use with PerformOFlex hose. The use of other manufacturer's hose ends is not recommended.Pit Stop USA offers Earl's Perform-O-Flex Hose - 20 Feet - #10 420010 at low everyday prices. Be sure to check out all of our products from Earl's Performance Products including Earl's Performance Products Earl's Perform-O-Flex Hose.