Constructed of lightweight aluminum with a 37º angled sealing surface for a positive anti-leak seal (does not require a sealing compound or Teflon® tape for sealing). These Hose Ends feature the ultra brite corrosion resistant Endura finish that simulates the appearance of stainless steel at a more affordable cost. Ideal for the serious enthusiast who demands the utmost in durability, performance and appearance. Designed for use with alcohol or racing fuels.