Maxblue MB-4396508-P-3 is a replacement water filter compatible with various refrigerator models from Whirlpool, KitchenAid, and Sears/Kenmore. It is designed to reduce contaminants like chlorine, benzene, lead, and cysts, providing cleaner and healthier drinking water. The filter has a capacity of 300 gallons and should be replaced every six months to ensure optimal performance. It features easy installation and requires no special tools or skills. The filter helps remove impurities and improve the taste and odor of your drinking water.