Culligan RC-EZ-4

The Culligan RC-EZ-4 fits all Culligan IC-EZ, US-EZ, and RV-EZ filter systems. The RC-EZ-4 can be used as an upgrade to the RC-EZ-1 and RC-EZ-3. The RC-EZ-4 is an easy to use quick change cartridge. The Culligan RC-EZ-4 has a filter life of up to 6 months or 500 gallons. The water filter life will also depend on the quality of your water and your water usage. The package includes the Culligan RC-EZ-4 Level 4 replacement filter cartridge, a filter change reminder sticker, and a replacement battery if your Culligan system requires a battery.