The Shoreline Marine Universal Fuel Filter is compatible with inboard and outboard engines, and it features 5/16' and 3/8' OD barbs to match the fuel lines. This fuel filter has a clear-view in-line housing that can help you determine if it needs cleaning or replacement. The Shoreline Marine Universal Fuel Filter is crucial equipment that can safeguard your inboard and outboard boat engines from debris and dirt and helps keep your engine running smoothly.Clear view in-line fuel filter fits 5/16' and 3/8' fuel linesFor use on inboard and outboard enginesQuantity per pack: 1