We recommend Crystal Quest CQE-WH-01152 Arsenic Dual Whole House Water Filter - 2 cu.ft.. It is the most advanced and effective Dual Whole House Arsenic Water filter on the market! A combination of a large scale arsenic reduction, and a quality Whole House unit - for one single price! * First, water travels through a 20 inch sediment cartridge that removes sediment, silt, sand and dirt. Also this extends the life of water softeners and water filters, and prevents damage to control valves or pumps. * Next, water travels through a 1.5 or 2.0 cubic foot media tank with an Automatic Microprocessor Control valve. (The longer amount of time that the water is in contact with the media, the more effective is the conditioning and filtering of the water.) * In stages 3 through 5, water travels through a mix of copper and zinc KDF-85 and KDF-55, and through Granular Activated Carbon layer, to remove hundreds of contaminants from water (if present). * In stage 6, water travels through a 20 inch solid carbon cartridge for a final conditioning of the water and removing any remaining contaminates and VOC's which may be in the water. Double Arsenic Whole House Filter Features: * Poly Glass mineral tank * Riser style 1" internal flow distributor * Solid state microprocessor with LED display Electronics control valve * Solid state microprocessor with LED display. Time of day, remaining capacity, regeneration cycle in process * Compact turbine meter * Downflow or upflow regeneration cycles * NOVRAM valve status and memory backup * Continuous flow rate of 11 GPM/cubic foot up to 20 GPM * Backwash capacity handles tanks up to 12" diameter for softener applications, 10" for filter applications * Double backwash capability Chrome sleeve/jacket - Polyester fiberglass tank 3/4" or 1" Stainless Steel Bypass Valve NSF-certified components Arsenic Reduction Filter System Parameters: Maximum temperature: 212 F Maximum free chlorine: 1 PPM Sediment filter cartridge and Solid carbon cartridge life: 6-8 months Arsenic media remove after: 750.000 gallons or 5-7 years. 2 cu.ft., 1,000,000 gallons, 12x52 each tank.

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