The Everpure ESO 7 is a unique three stage blending cartridge that provides softened/buffered/filtered water, The Everpure ESO-7 replacement water filter cartridge reduces hardness in water that can cause minerals to build-up in coffee and espresso equipment, The Everpure ESO7 EV9607-25 water filter reduces minerals such as calcium and magnesium, The ESO 7 reduces chlorine, off tastes and odors, The Everpure ESO 7 EV960725 Softening Cartridge utilizes ion exchange resin with buffering capabilities and high capacity coconut carbon filtration, Buffering prevents water from becoming too acidic, Small amount of carbon filtered water bypasses softening resin to allow proper initial hardness, The Everpure ES0 7 EV9607-25 filter"s sanitary cartridge replacement is simple, quick and clean, Internal filter parts are never exposed to handling or contamination, Overall Dimensions: 18, 75"" H x 3, 25"" Diameter, Service Flow Rate: Maximum 0, 5 gpm (1, 9 Lpm), Temperature Range: 35 - 100F (2 - 38C), Pressure Requirements: 10-125 psi(0, 7-8, 6 bar) non-shock, Treatment Capacity: 600 gallons (2300 liters) 150 ppm, Capacity: 5,300 grains, SKU: CWD2346