Trident Marine 3/8" x 50 Boxed Low Permeation Type A1-15 Fuel Line Hose - Black [365-0386]3 8" x 50' Boxed Low Permeation Type A1 15 Fuel Line Hose Black Trident Barrier Lined A1 15 Fuel Hose for both gasoline (including ethanol blends up to 85%) and diesel (including bio diesel blends up to B100). This hose is built with the best fuel, fire, and age resistant formulation, and a unique "Barrier Liner" on the inside surface of the tube, so fuel is not in direct contact with rubber. Features: Provides extraordinary resistance to fuel