Clean water to drink and cook with is a must for every household. The UKF8001 filter uses activated carbon to purify your water of unwanted contaminants. The filter fits into a variety of refrigerator brands and is easy to install. We offer two different models of the UKF8001 filter: The OEM Maytag replacement and the aftermarket Supco Replacement. Both of these models have a 300 gallon filtering capacity, though the Maytag has a slightly higher gallon per minute flow rate. The Maytag has also been NSF certified to reduce contaminants and chlorine in your water. However, we still recommend the Supco replacement due to its affordable pricing and comparable filtration results to the OEM. Both OEM and aftermarket filters should be replaced at least once every six months to ensure that your water remains clean, healthy, and tasting great.