Fuel filters represent the first line of defense and are critical to keeping your engine running at peak performance and efficiency. This screw on fuel/water separator replaces Seachoice 20911, Valmar 52113, Sierra 7844, Racor PFF 5510, Moeller 03332410 and Mercury 35-802893Q01 canisters. 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.