CRYSTAL QUEST® 10" Twin Replaceable Cartridge Whole House Water Filter provides you with great tasting water. Removes hundreds of contaminants from water. Water travels through 7 stages of filtration • First stage, Water flows through a 10" solid carbon cartridge for removing volatile organic carbon compounds (VOC's), insecticides, pesticides and industrial solvents.* • Second, third, fourth, fifth, sixth and seventh stages, water travels through a one micron filter pad, KDF55, KDF85, Ceramic Balls, GAC, and another one micron pad and removes hundreds of contaminants* from your drinking water. • Conveniently provides 120,000 gallons of quality water. Great for homes, apartments or office use. • Pressure Release Valve • Built-in Wall Bracket • Easy Filter Changes Click here for 6 stage replacement cartridge Click here for carbon block replacement cartridge • Compact • Great for high flow applications • Inlet/Outlet size 1" NPT and can easily be converted to 3/4" and 1/2" • Free Shipping!