Clear, clean, great-tasting water for drinking and cooking is easy to achieve with a Culligan Drinking Water Filter System. Culligan Replacement Cartridge for IC and US-Series features an easy-change design that avoids the mess that can accompany changing traditional cartridges. The Culligan Water Filter Replacement Cartridge is designed for Level 4 Premium Filtration. The easy-to-use design eliminates the need for buckets, towels, wrenches and other tools. Culligan Replacement Cartridge for IC and US-Series water filtration removes sediment, lead and other pollutants, leaving you with pure, fresh drinking and cooking water. Each Culligan Replacement Filter has a cartridge life of 500 gallons and includes a manufacturer's two-year limited warranty.