4 AN Straight Hose End Push Lock Lok Fitting. -4 AN Straight Hose End Push-Lok Lock Fitting. A 9/16" Wrench Fits This -4 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.
