BenefitsOur Nitrate Countertop Water Filter System is dependable and built to last for years. This countertop system installs in seconds and sits on the countertop for water on demand. Quick and easy to use, stylish, convenient, and effectively removes many contaminants, including Nitrates, from your water.A diverter valve switches between filtered and unfiltered waterSits on the counter and easily connects to any kitchen faucetWhite (Polypropylene) housing is BPA FreeGreat for homes, apartments or office use.Option for countertop models only: Washable Pre-filtration Filter: use with any countertop system to help remove sediment thus enabling your filter to work more efficientlyWhich cartridges are in my system?SingleDoubleTripleNitrate FilterYesYesYesSMART FilterNoYesYesCarbon Block FilterNoNoYesNitrate Removal Water Filter CartridgeWater travels through a Nitrate-selective media. Nitrate reduction is 90% to 95% and breakthrough is not affected by sulfate levels. The capacity is 3000 ppm (parts per million) of nitrates as CaCO3. To determine capacity, first, calculate the ppm of nitrates as CaCO3, then divide that number into 3000 to get the gallons. This cartridge can be regenerated using a sodium chloride brine.• SMART Water Filter CartridgeWater flows through a bed of media made of a special high-purity alloy blend of two dissimilar metals - copper and zinc (ERA-6500, ERA-9500). ERA-6500 and ERA-9500 are major advancements in water treatment technology that works on the electrochemical and spontaneous-oxidation-reduction (Eagle Redox Alloy®) principles. Chlorine is instantaneously and almost inexhaustibly oxidized.Water flows through ion exchange resins, reducing heavy metals such as lead, copper, aluminum, and water hardness.Water flows through granulated activated carbon (GAC). GAC is universally recognized and widely used as an effective adsorbent for a wide variety of organic contaminants, such as chlorine (99.9%), chemicals linked to cancer (THM''s, benzene) pesticides, herbicides, insecticides, volatile organic compounds (VOC''s), PCB''s, MTBE''s and hundreds of other chemical contaminants that may be present in water causing bad taste and odors in your drinking water.All Crystal Quest® GAC is a mixed blend of coconut shell and catalytic GAC to address both chlorine, chloramines and these byproducts.Carbon Block Water Filter CartridgeWater travels through a 5-micron solid carbon cartridge for removing volatile organic carbon compounds (VOC''s), insecticides, pesticides and industrial solvents and traps particles larger than 5 microns including sediment, silt, sand, and dirt. DimensionsPolypropyleneStainless SteelSingle5L x 13H x 5W5.5L x 13.5H x 5WDouble10L x 13H x 5W9L x 13.5H x 5WTriple15L x 13H x 5W14.5L x 13.5H x 5WOperating SpecsMin Operating Pressure20 psi (pounds per sq. in.)Max Operating Pressure60 psi (pounds per sq. in.)Min Operating Temperature40° FMax Operating Temperature90° FMax Flow Rate0.5 gpm (gallons per minute) Replacement CartridgesProduct NameSKUNitrate Filter Cartridge (2-7/8x9-3/4)CQE-RC-04007SMART Filter Cartridge (2-7/8x9-3/4)CQE-RC-04002Carbon Block Filter Cartridge (2-7/8x9-3/4)CQE-RC-04000 Product Manual Countertop-Manual.pdf