Culligan Easy Change 3 Icemaker & Refrigerator Water Cartridge is designed to provide basic filtration for your icemaker and refrigerator drinking water. This cartridge Level 3 filtration, effectively reducing bad taste and odor, chlorine taste and odor, as well as particulate Class 1 contaminants. Featuring quick-connect fittings, it ensures a hassle- connection to your water supply. The cartridge is NSF , meeting strict safety and performance standards. With a filter life of 500 gallons, it is built to last for an extended period before requiring . For optimal performance, it is to replace the cartridge according to the manufacturer’s instructions. Model Number: RC-EZ-3