Quicksilver 35-18458Q4 Fuel FilterQuicksilver water separating canister element includes an O-ring and a blue plastic water sensor unit. It is compatible with all 1996 and newer Mercury and Mariner V6 EFI outboards. The unit is located under the cowl on all Mercury/Mariner V-6 EFI/DFI outboard engines, 1996 and newer. The filter element removes harmful contaminants, particles, and water from the fuel before it reaches the engine. Check your owner's manual for inspection and replacement schedules.Features Replacement water separating fuel filter element includes blue screw-in sensor; 10 micron fuel filter removes contaminants, particles, and water from fuel; Easy to replace annually when winterizing or every 100 hours of engine operation; Internal epoxy coating and corrosion-resistant external paint for weather protection; Produced to meet Mercury Marine original equipment manufacturer specifications; * Special Order