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Replacement for Model US-EZ-3

Culligan RC-EZ-4 Replacement Water Filter Level 4


Retail: $69.99 /ea
You Save: 21%
Buy 1 - 5 for $54.95 ea.
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Retail: $69.99
You Save: 21%
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Bottled water will be a distant memory when you install the Culligan RC-EZ-4 Replacement Water Filter Level 4. This under-sink filter cartridge offers a premium level of filtration, reducing contaminants like cysts, mercury, lead, and more, along with unpleasant odors and tastes. These harmful elements are not only bad for your health, but they affect the clarity and taste of your drinking water, too. This filter's design makes it fast and easy to change. You'll be saving money and saving the environment at the same time! There are 2 additional filters available for your Culligan US-EZ Under Sink filter system. Level 1 (Good) - Reduces chlorine taste and odor. Level 3 (Better) - Reduces Chlorine and other waterborne contaminants including mercury and cysts. Level 4 (Best) - The RC-EZ-4 on this page provides the greatest reduction of contaminants for your undersink system. Culligan has been a trusted water filtration brand since 1936. Get Culligan water treatment without calling the Culligan man!


  • Brand: Culligan
  • Part Number: RC-EZ-4
  • Pack Size: 1
  • Filter Life (Months): 6
  • Filter Life (Gallons): 500
  • Filter Media: Carbon Block
  • Flow Rate: 0.5 gpm
  • Operating Pressure: 30 - 100 psi
  • Operating Temperature: 40 - 100 °F
  • NSF Certification(s): 42, 53

Compatible Models:

The Culligan RC-EZ-4 Replacement Water Filter Level 4 is correct replacement for the following model numbers:

BrandModel NumberDescription
CulliganIC-EZ-1Universal Inline Water Filters
CulliganIC-EZ-3Universal Inline Water Filters
CulliganIC-EZ-4Universal Inline Water Filters
CulliganRV-EZ-3Universal Inline Water Filters
CulliganUS-EZ-1Universal Inline Water Filters
CulliganUS-EZ-3Universal Inline Water Filters
CulliganUS-EZ-4Universal Inline Water Filters
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Customer Reviews:

Total Reviews: 2 | Average Rating: 5 / 5.0

Kitty Fowler2022-06-28

Works great

Collected by
Kathryn Behm2021-04-06

Will be used this summer at family cabin.

Collected by

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