Aquasana AQ-4000 Drinking Water Filter Replacement Cartridges A & B, Lasts 6 months/500 gallons. Filters out; lead, chlorine, VOCs, MTBE and chlorine resistant parasites/cysts. The new AquaKoozy bottle carrier is the perfect way to take healthy aquasana water wherever you go! This patented twin cartridge drinking water filter installs in seconds on standard kitchen faucets [...]