Features and Benefits: * Compatible with all standard AN braided hose * Redundant FKM O-rings are compatible with fuel (including racing fuels, ethanol-based fuels (E85+), diesels/bio-diesels, and ethanol/gasoline mixtures), engine oil, gear oil, transmission fluid, coolants, water, air and vacuum * Unique left-hand threaded socket * Stainless steel lock rings * Reusable * Easy to assemble * Lightweight 6061-T6 aluminum construction * MilSpec Type II black anodized for durability