Master Plumber, 5/16 " ID x 9/16" OD x 50", Fuel Line/Vapor Emission Hose, Meets The Specifications For Multiple Types Of Gasoline, Including Those Enhanced With Alcohol Up To 15%, The Tube & Cover Are Resistant To Oil, Ozone & Gasoline For A Long Service Life, The Inner Reinforcement Is A Spiral Synthetic Cord, PSI 40, Patented Open Box Spool.