Moeller 033319-10 In-Line Fuel Filter KitKit Includes: Universal inline glass view fuel filter ; 3/8", 5/16", & 1/4" barbs; Features: Moeller's In-line Disposable fuel filters trap dirt and other metallic particles.; The design allows for immediate inspection of your fuel condition with clear vial.; 20 Micron Filtration; Not for use on inboard engines!;