EARLS Perform-O-Flex Stainless Braid protected synthetic rubber hose is the premium quality racing hose depended on by the top racing teams of every professional sanctioning body in the world. The pressure ratings are only valid when Perform-O-Flex hose is used with either Swivel-Seal or Auto-Fit hose ends. The use of other manufacturers hose ends is not recommended. If you are going to pay for the best demand it. Insist on Earls Perform-O-Flex hose and Swivel-Seal or Auto-Fit hose ends. Stainless Steel Inner Braid, Maximum Pressure Rating of 1500 PSI, Remains Flexible at Temperatures Between -40°F and +300°F. Sold per foot