Invincible Marine Disposable Universal Inline Fuel Filter Made using the highest quality components Performance and quality tested The most trusted name in marine accessories and equipment Protects your engine by removing harmful water, dirt and other impurities from your fuel For use on inboard, outboard, and inboard/outboard boat motors Disposable fuel-line filter fits 5/16-inch and 3/8-inch fuel lines Easy to install Comes with a 1-year warranty