The 4396701 removes harmful contaminants from your water supply. Don't be stuck drinking dirty water. The 4396701 refrigerator water filter uses carbon filters to reduce particles. Some of these contaminants include lead, chlorine, mercury and minerals. This filter, 4396701 is commonly used in refrigerators made by Whirlpool, KitchenAid and Jenn-Air. There are many alternate part numbers that this item is compatible with. Discountfilters.com offers the 4396701 model filter with a few replacement options. You can choose between the AquaFresh WF293, EcoAqua EFF-6001A, and Whirlpool original. The OEM 4396701 is the made with genuine parts. The AquaFresh and EcoAqua products are the aftermarket alternatives. The 4396701, including both the OEM and Aftermarket, do a very similar job. We recommend the AquaFresh WF293 as the best option. The 4396701 works at giving your home the fresh water it wants.