The Culligan model No. IC100A icemaker and refrigerator dispenser is a level 1 drinking water filter that connects to the back of the refrigerator. The model No. IC100A features granular activated carbon, which reduces unpleasant chlorine taste and odor. Features include easy installation, compact design, and filter life of 12 months 2500 gallon. Package includes: Disposable filter, cartridge change reminder sticker.