Attwood 8899LP6 3/8" ID Hose Barb Quick Connect Mercury and Marine Hose Fitting Attwood fuel tank fittings and hose fittings are suitable for use with leaded, unleaded, ethanol blended and alcohol-blended fuels. Unless otherwise specified, threaded fittings have 1/4" male NPT threads; barbed fittings fit 3/8" I.D. hose. Clamps are not included. Use teflon tape on all threads. Attwood 8899LP6 3/8" ID Hose Barb Quick Connect Mercury and Marine Hose Fitting Features: Hose fitting For use with leaded, unleaded and alcohol blended fuels Low permeation Made from molded acetal For use with 8873-6 tank fitting Size: 3/8"