Water separating canisters trap the smallest particles and ensure no contaminates or rust will contribute to a blocked fuel system. Composite filter head for resistance to saltwater corrosion. Not recommended for use with diesel engines. Kit comes with two 10-micron fuel filters and one composite filter head with 3/8" NPT hi-flow ports, barbs, and plugs. Designed for use with Mercury, BRP (Johnson & Evinrude), Yamaha, Suzuki, Honda, Tohatsu, and Nissan Outboard Engines. To order a replacement fuel filter, use item #967382.