Invincible Marine Fuel Line Connector, Mercury Female, 3-Piece Made using the highest quality components Performance and quality tested The most trusted name in marine accessories and equipment Features the Speed Prime technology This connector fits 5/16-inch or 3/8-inch fuel lines, includes spring loaded double check valves and has stainless steel hose clamps BR53210 Mercury Fitting 3-piece Female Tank Cast Aluminum, -inch NPT This fuel connector has been tested in extreme climates and is alcohol resistant Comes with a 1-year warranty