Waterdrop 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)
Condition: New
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Eligible for Return, Refund or Replacement within 30 days of receipt
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 3 left in stock, order soon!
Arrives
Sunday, Oct 5
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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.
- Efficient filtration: With supreme coconut shell carbon block, Waterdrop filter can effectively reduce chlorine, heavy metals like taste and odor, sediment, rust, Turbidity, Particulate Class I. The high impurities reduction rate ensures that the water we give to you is clean and healthy.
- Food-grade plastic housing: Waterdrop uses food-grade plastic housing to free you from worrying about impurity leaching back to your water.
- Stable flow rate: The fast yet stable water flow is another advantage for further filtration.
- New upgrade & Long service life: After advanced upgrade, the model number is changed from WD-RC-EZ-4 into WD-W35Z4. Enjoy refreshing taste by changing your filter every 12 months or 2,000 gallons. Still, it depends on your local water quality.
Material: Carbon,Coconut Shell
Item Weight: 3.79 Pounds
External Testing Certification: NSF
Product Benefits: Reduces Odor, Taste and Chlorine
Brand: Waterdrop
Material: Carbon,Coconut Shell
Item Weight: 3.79 Pounds
External Testing Certification: NSF
Product Benefits: Reduces Odor, Taste and Chlorine
Brand: Waterdrop
UPC: 840814177631
Compatible Water Purifier Models: Culligan US-EZ-4
Package Dimensions: 13.54 x 7.99 x 3.98 inches
Item Weight: 3.79 pounds
Manufacturer: Waterdrop
Item model number: WD-W35Z4
Date First Available: June 18, 2020
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Oct 5
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Ordered Prime yesterday, arrived today less than 24-h. Stellar. I have been with the EZ Twist system since it was in Dupont filters many years ago. Dupont's water filter business had subsequently been taken over by Culligan. The same EZ Twist format is currently used by Brita products at Home Depot and AC Moore products at Lowes in the US. Culligan has since moved on to a different format and thus their current line of filters no longer includes the EZ Twist system. Currently, any Culligan branded EZ twist system is either being sold at clearance prices - or in some cases scalped at ridiculous prices. In this Waterdrop filter listing, I found that I can get two of the EZ 4 compatible carts for less than what I expected. Waterdrop also has EZ 1 and EZ 3 carts also for much less than EZ 4. Thanks to Waterdrop's listing, I discovered that the Culligan and Dupont brands are completely interchangeable between any of the EZ 1,2, or 4 carts and I decided to order some EZ4 and try them out. I already have enough EZ1 and 3 carts. When they get discontinued at the big box stores, they go on liquidation for ridiculous prices - and over the years I have more EZ1 and 3 carts branded Cultigen, Dupont, and Brita than I would need for over 5-years. The Ez 4 filters are larger than the Ez 1 and 3 I used previously, but I already knew that from the item description. Something new, was that there was a sealing cap on the filter that I had never seen on any previous filters. When I removed this plug, a sudden rush of air whooshed through the filter opening - leading me to believe that it was packed under a specific gas and/or pressure conditions to preserve it until use. I don't know if it makes any difference or not, but it's something new. The filter installed without a hitch into my old Dupont Basic housing (later rebranded as the Culligan EZ 1 and now discontinued). When priming the filter, a lot of air came out for a while - which is new. After priming it, the results are stellar. I was probably fine with the EZ1 cart I had been using for years - I have a sediment filter inline before it. I can tell there is a difference between the Dupont or Culligan Ez 1 cart I was using, but I don't know if it's any better yet. I know the water is still odorless and almost tasteless. Comparing it to unfiltered, the unfiltered has a strong odor of chlorine and has a somewhat funky taste while and shortly after drinking. Granted, the EZ1 filter did the same thing and the funky tastes of the unfiltered water are easily masked by mixing with a flavor. However, for the price I paid, these filters are a bargain. I hope they stay around the same price. Art the rate I use filters, it will be some months before I need more. EDIT: This manufacturer is genius in that it has removed the keying system and allowed it to fit into Culligan, Dupont, Brita, and most likely AO Smith systems. The OEM carts have a keying system that will not allow a name brand cart to fit into a different brand. But without the keying system and only the 2 holes - this particular line of filters by Waterdrop is interchangeable between all these, and probably more , brands. GENIUS!
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Reviewed in the United States on July 30, 2021 by mtliu
Water looks and smells clean.
Reviewed in the United States on June 16, 2024 by IGH Doug
easy to install....just use them for the icemakers. claimed to filter a lot of things, chloromines (sp?) being one of the main ones I wanted to filter. Ice has no discernable taste, so somethings working. Large filter, but fit the existing holder well. About 1/2 price of brand name.
Reviewed in the United States on January 26, 2021 by Alvin R. Werchan
See no difference in these and the name brand that easily cost three times more. Water tastes perfect, and is an exact fit. Will continue to purchase this brand for the fridge and countertop ice maker.
Reviewed in the United States on January 30, 2024 by Joseph M Edwards
Much cheaper than the culligan brand
Reviewed in the United States on March 21, 2024 by Julia E Hardison
Keep buying these over and over, great filtration.
Reviewed in the United States on June 19, 2023 by RE
First time to use this product for our built in sink dispenser. Took a while for the water to run clear, but the water tastes great! It will be a six month filter, so I may get back in six months. So far so good. Easy to install. Compatible with my previous filters.
Reviewed in the United States on August 31, 2023 by R. Roberts
got this for my LG frig and they fit just like the OEM ones. no leaks on first snap in !!! will buy from again good value.
Reviewed in the United States on May 26, 2022 by TALL MAN