Recommended Flow Rate: 6-8 GPM Dimensions: 5" x 20 2 Cartridges: SMART Technology & Carbon Block Cartridges Requires no electricity & no backwashing Easy install, use and change cartridge WATER TRAVELS THROUGH 7 STAGES OF FILTRATION Stage 1: Water flows through a 20” solid carbon filter cartridge for removing volatile organic compounds (VOCs), insecticides, pesticides and industrial solvents.* Stage 2: Water flows through a one-micron filter pad which removes suspended particles such as silt, sediment, cyst (Giardia, Cryptosporidium), sand, rust, dirt, and other undissolved matter.* Stage 3: Water passes through coconut shell granulated activated carbon (Arsenic-Free GAC™). GAC is universally recognized and regularly used as an effective adsorbent for removing a wide variety of organic contaminants, bad taste and odors from drinking water. Stage 4: Water flows through the ion exchange resin, reducing heavy metals such as lead, copper, aluminum, and water hardness. Stage 5 & 6: Water flows through a bed of media made of a special high-purity alloy blend of two dissimilar metals - copper and zinc (Eagle Redox Alloy® 6500 and Eagle Redox Alloy® 9500.) Stage 7: Water flows through another one-micron filtration pad for further reduction of undesirable particles. The end result is a great reduction or the total elimination of a wide variety of contaminants.