Quicksilver in-line, under-cowl fuel filter. Filter is for use on the 30/40 EFI 4-stroke outboard, the 4-cylinder 40/50/60 HP EFI 4-stroke, the 75-115 4-stroke (1.7L, S/N 1B366823-2B094995), the 75-115 4-stroke (2.1L S/N 2B094996 and above), the 150 EFI 4-stroke (1B905505 and above) and the 135 thru 300 HP Verado. Fuel filter traps unwanted dirt and contaminants in your engine's fuel line to protect against damage and enhance performance. 1 filter per pack. Protects against damage to enhance performance 1 filter per pack | In-Line Under-Cowl Fuel Filter