Five Oceans Brass 1/4&rdquo; NPT Male Fuel Line Connector 2-Prong, Mercury 1998 and Up FO-2899 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 2-prong clip style tank connector, 1/4" NPT BUILT WITH DURABLE materials for marine enviroment THIS MALE CONNECTOR WAS DESIGNED for Mercury Pre 1998 1/4" NPT FITTING is compatible with most portable tanks