Your boat engine should be treated like your best friend: with great care and affection. Thanks to the team at Eastener, you can now do this with their latest Fuel Filter, Mercury, with Clear Bowl. A water separator filter is an essential element to your fuel system, and keeps the engine running smoothly and efficiently. This filter is durable, featuring a die-cast aluminium filter head. It also includes a 10-micron element, as well as a reusable clear bowl. This is a replacement filter for MERCURY 35-604491-1 models. So if your water separator filter needs replacing, this is the product for you. Even if your filter does not need replacement, it is a wise idea to have one ready at your convenience for when it does. This product is simple, effective and will keep everything running smoothly on your boat, so you can focus on doing what you love best!