Mercury - Water Separating Fuel Filter Kit SeaPro Series Durable Construction 8M0097838. Overview. Any boater who runs long days on the water knows that dependable power starts with clean fuel. It's not something you think about when everything's running right-but you sure notice it when it isn't. The Mercury 8M0097838 Water Separating Fuel Filter Kit is one of those quiet heroes in the system, guarding your SeaPro outboard from the moisture, debris, and fuel issues that can sap power or cut a t