The UKF8001 is one of the most popular replacement filters. It fits in a variety of popular refrigerator models. The UKF8001 uses activated carbon to remove contaminants from your tap water. It can remove bacteria, chlorine, lead and other particles. DiscountFilters.com offers the UKF8001 in an OEM or aftermarket option. Both filters do a similar filtration job. The OEM UKF8001 is the Maytag UKF8001. This option is made with factory original materials and is NSF certified. The UKF8001 aftermarket is the EcoAqua EFF-6007A. The generic is the more affordable option. These replacement filters, UKF8001 should be replaced at least once every six months. Check below to make sure it is comparable with your part number. The UKF8001 replaces a variety of models.