Five Oceans Female Fuel Line Connector 5/16", 3/8&rdquo; OMC, Johnson, Evinrude, Yamaha and Mercury COMPATIBLE WITH ETHANOL BLENDED FUELS - Engineered low permeation material which prevents fuel evaporation. Not mention, suitable for Boats, RVs, Tractors, and Caravan EASY INSTALLATION with barbed fitting for 3/8" I.D (Internal Diameter) BUILT WITH DURABLE materials for marine enviroment THIS QUICK CONNECTOR WAS DESIGNED for all Yamaha and Mercury (Pre 1998) engines and tanks 3/8" barb