attwood Low Permeation Fuel Line Kit (Yamaha) For use with portable fuel tanks and popular outboard engines, and made to the highest quality standards. Alcohol-resistant hose, suitable for use with leaded and non-leaded fuels. 3/8-Inch I.D. hose for maximum flow. Primer bulb is injection molded for strength and durability. Double check valve for quick priming and unrestricted flow. Noncorrosive galvanized hose clamps. Low Permeation Re-engineered barbs and stepless clamps add strength and leak resistance. EPA certified compliant hose.