Sierra 47-7844 Fuel water Separating Filter.

Sierra's 21 micron filters are over 90% efficient at removing particles as small as 21 micron, and flow at 90 GPH to feed even the hungriest motor. Ethanol-blended fuel absorbs more water and loosens more particulates than regular fuel.

Replaces: Mercruiser 35-807172, 35-806771, 35-805269, 35-8052691, 35-802893Q, 35-802893Q01, 35-60494, 35-604941, 35-60494A5, 35-57250, 35-55501, 35-52456