6 AN Straight Swivel Hose End Fitting. Rubber Lined Braided Stainless or Nylon Braided Hose. An 11/16" Wrench Fits This -6 AN Hose End. This Hose End Can Be Used In Many Applications and With Many Chemicals Including, Gauge Plumbing, Fuel Feed, Oil Feed, Transmission Fluid, Coolant, Diesel, Race Fuel, Alcohol, E85 etc.