The Pentek P250A water filter set filters the water twice producing healthier and better-tasting drinking water and cooking water. The Pentek P-250A replacement filters reduce extra fine dirt, sand, sediment, silt, rust particles, and scale particles. The Pentek P-250A filter set reduces odors, chlorine taste and odor, bad taste, sediment, and asbestos. 9.75-inch x 2.4-inch Sediment Water Filter and Drinking Water Filter. 0.5 micron extra fine water filtration. NSF International Certified to Reduce MTBE. The Pentek P-250A reduces 99% of dissolved lead. The Pentek P-250A water filters remove greater than 99.95% of cryptosporidium and giardia cysts from your drinking water. The Pentek P-250A filter cartridges reduce mercury, chemicals (VOCs), pesticides and herbicides.