The Aqua-Pure AP810-2 water filter reduces dirt and rust down to 5 microns. The AP810-2 is perfect for larger homes and commercial applications. The AquaPure AP810-2 is made from pure white celluose fibers. As water passes from the outer surfaces into the center of the cartridge, the filtering pores become increasingly smaller to remove even microscopic particles. Unlike string-wound and pleated paper cartridges, the rigid, sturdy construction of the Aqua-Pure cartridges are able to withstand high pressure drop and stressful conditions such as water hammer. The AP810-2 is also known as the AquaPure 55779-07 and AquaPure 56189-03.