The 3M Aqua-Pure AP810 water filter is for use with many 3M Aqua-Pure whole house filters that use 9 3/4 inch x 4 1/2 inch water filters. This filter cartridge helps reduce sediment that can make its way into your whole home water. Its high flow rate produces a large amount of filtered water every day. Whole house water filter systems are great solutions to help protect your pipes and appliances as well as offer you great tasting drinking water from anywhere in the home. Experience the difference and order the AP810 whole home water filter.