Long Filter 4.35 inch Sierra fuel water separators remove over 98.8 percent of emulsified water from your gasoline. Sierra fetes 10 micron filters are over 90 percent efficient at removing particles as small as 10 microns. All filters flow at the rate of 90 GPH to feed even the hungriest motor. Sierra 10 micron filters are recommended to prevent damage to sensitive inboard and outboard fuel injection systems. Replaces Mercury - 35-802893Q, Yamaha - ABB- fuel filter 10 micron rating.