This Seachoice Fuel/Water Separator Filter is a direct replacement for select OMC filters, and it reliably filters water and solid contaminants out of the fuel system to ensure the engine operates with premium efficiency. This filter replaces filters including OMC 502905 and OMC 174144 filters, and the Sierra 18-7946 filter. This 10-micron, high-efficiency filter meets OEM specifications and is epoxy-coated for corrosion resistance. This filter is backed with a 1-year warranty. Seachoice is committed to delivering quality marine accessories and OEM replacement parts to satisfy fishing, boating and watersports enthusiasts worldwide. Seachoice is run for and by boaters, offering a wide-ranging product line while remaining affordable.