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AQUA CREST

AQUA CREST RC 4 EZ-Change Premium Water Filter Replacement, Replacement for Culligan® RC-EZ-4, IC-EZ-4, US-EZ-4, RC-EZ-3, DuPont® WFQTC30001, WFQTC70001, 2K Gallons (Pack of 2)

  • Based on 202 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Mar 26
Order within 5 hours and 42 minutes
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Features

  • Compatible models: Interchangeable with Culligan RC-EZ-1, RC-EZ-3, RC-EZ-4, compatible with IC-EZ, US-EZ, RV-EZ system; DuPont WFQTC30001, WFQTC70001, WFQTC90001.
  • High-efficiency filtration: Effectively reduce chlorine, heavy metals, Taste and Odor, Sediment, Rust and reduce Chloramines. The efficient filtration is dedicated to providing you with an excellent water drinking experience.
  • Safe material: Uses food-grade plastic housing and will not leach impurities back into your water. It can also prevent bursting to bring you a satisfying and safe shopping experience.
  • Easy installation: Easy to install and compatible with the original brand filtration system perfectly without leakage.Can be installed in your EZ-Change filter system under the sink for clean water.
  • New upgrade & Long-lasting service life:After advanced upgrade, the model number is changed from AQU-RC-EZ-4 into AQU-WF35-Z4. Enjoy fresh water by replacing your filter every 12 months or 2000 gallons, Whichever comes first will vary based on water quality.
  • Connected with the cold water valve only! This filter does not reduce TDS!

Material: Lead Free Material


External Testing Certification: NSF


Product Benefits: Reduces Odor, Taste and Chlorine


Brand: AQUA CREST


Set Name: Pack of 2


Material: Lead Free Material


External Testing Certification: NSF


Product Benefits: Reduces Odor, Taste and Chlorine


Brand: AQUA CREST


Set Name: Pack of 2


UPC: 840814177617


Unit Count: 2 Count


Compatible Water Purifier Models: Culligan US-EZ-4


Number of Items: 2


Package Dimensions: 13.5 x 7.87 x 3.82 inches


Item Weight: 3.87 pounds


Item model number: AQU-RC-EZ-4-2


Date First Available: June 18, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Mar 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Good filters at a low price
These are really good filters and probably half the price of some of the others. Easy to install, fit tight with no leaks and last a good while.
Reviewed in the United States on May 31, 2025 by Matt
    • Replacement Filter Cartridges
If these work as well as the last ones we ordered, I'm well satisfied.
Reviewed in the United States on July 28, 2025 by dumfriessteve
    • Water tastes good
Been using this brand of filters for a few years now with good results. They fit well in my under sink unit and the water tastes good. Saves me a few dollars off the name brand. It's refreshing that they are made in USA.
Reviewed in the United States on November 5, 2024 by Good-Guy
    • Turn off water before you remove them
Review Image by Tony MATOUSEK Tony MATOUSEK
Review Image by Tony MATOUSEK Tony MATOUSEK
I’ve been using these for years now, and when I change both of them out I have extra valves in line so that I can flush the new ones out with out going to each fridge and doing it there especially one of them only makes ice so that hard to flush but there easy to change also we don’t have hard water here ... show more
Reviewed in the United States on September 19, 2025 by Tony MATOUSEK Tony MATOUSEK
    • Great value replacement filters.
These are excellent replacement filters for the Culligan under sink system. Easy to replace, just remember to turn the water off!
Reviewed in the United States on June 18, 2024 by Shuey
    • Perfect
These ARE perfect . When the water comes out of our drinking faucet it taste so good. Before I installed the filters I could taste the klorene. Now I love a good cool glass of my water to drink. Thanks
Reviewed in the United States on September 27, 2024 by Kindle Customer
    • so far, they are holding up
the water hasn't slowed down with use which I cant say about other filters i have used in the past!. usually after a month the filter restrict water flow, these ones are good still. fits as stated. water quality is good too, as I'm super sensitive to smells.
Reviewed in the United States on June 20, 2024 by Jay D Luxe
    • Cleaner water
Good water now that I have a good filter thank you
Reviewed in the United States on February 8, 2025 by Jeff Stanley

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