The new EDR4RXD1 EveryDrop Ice and Refrigerator Water Filter 4 is a replacement for the Whirlpool 4396395 and Maytag UKF8001 with the same functionality--only better. This product is NSF certified to reduce 23 contaminants, which is 6 more than previous models, and includes pharmaceuticals, pesticides, waterborne parasites, metals, minerals, industrial chemicals, chlorine taste, odor, and more! Now outfitted in a logical package design with bolder colors and more intuitive model numbers, Whirlpool is committed to getting you the best and correct filter for your refrigerator in the easiest way possible. Order today!