Replacement Cartridge RC-EZ-4

The Culligan RC-EZ-4 EZ-Change Level 4 Replacement Cartridge is a drinking water replacement filter that reduces bad taste and odor, Chlorine taste and odor, sediment, lead, and cysts such as Cryptosporidium and Giardia, Mercury, Turbidity, Particulate Class I, VOC's, MTBE and Chloramines.



  • Bad taste & odor
  • Chlorine taste & odor
  • Sediment
  • Lead
  • Cysts such as cryptosporidium & giardia
  • Mercury
  • Turbidity
  • Particulate Class I
  • VOC (See performance data sheet for full list of contaminants reduced)
  • MTBE
  • Chloramines


  • Twist-on, twist-off mechanism
  • Quick-connect fittings
  • NSF Certified
  • 500-gallon capacity
  • Fits IC-EZ-1, IC-EZ-3 & IC-EZ-4; also US-EZ-1, US-EZ-3, US-EZ-4 and RV-EZ-3


  • RC-EZ-4 Level 4 replacement filter cartridge
  • Filter-change reminder sticker


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