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Culligan

Culligan US Change Sink Drinking Water System with Dedicated Faucet and Premium Filter, EZ-4 (Best Filtration), Chrome

  • Based on 8,591 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Oct 17
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Size: EZ-4 (Best Filtration)


Style: Under-Sink System


Features

  • Provide your family with visibly clean, great-tasting water for drinking, cooking and more
  • Features: Reduces particulates class 1, chloride, cyst, chloroform, MTBE, mercury, lead, turbidity, perfluorinated chemicals; 0.5 GPM flow rate; Includes 1 twist-on/off filter cartridge replacement, tubing, dedicated faucet, and installation hardware
  • Compatibility: Culligan US-EZ-4 cartridges
  • Filter life: Up to 6 months or 500 gallons, depending on usage and water conditions
  • Certification: Tested and certified by IAPMO to NSF/ANSI Standard 42 for the aesthetic reduction of Chlorine Taste and Odor, Chloramines and Nominal Particulate Class 1. Standard 53 for the reduction of Cysts, Mercury, lead, VOC, MTBE and Turbidity

Description

Culligan US Change Sink Drinking Water System with Dedicated Faucet and Premium Filter, EZ-4 (Best Filtration), Chrome From the Manufacturer The Culligan US-EZ-4 Premium Easy-Change Under-Sink Drinking Water Filtration System helps keep your family healthy and hydrated by providing clean water through a dedicated faucet (included with system). The Easy-Change Filter fits easily under the sink and can be installed with any sink's water system tapping into the cold water line to keep fresh water at your family's fingertips. Designed for convenience, this filter can be installed and replaced in mere minutes with the simple twist-on, twist-off mechanism and built-in quick-connect fittings. There is no need to shut the water supply off when changing the cartridge with the built-in ball and check valve in the filter head.

Brand: Culligan


Special Feature: Reduce TDS


Product Dimensions: 14.25"L x 9.25"W x 8.4"H


Package Information: Faucet


Installation Type: Under Sink


Power Source: Manual Operation


Model Name: EZ-Change Premium


Maximum Flow Rate: 0.5 Gallons Per Minute


Upper Temperature Rating: 100 Degrees Fahrenheit


UPC:


Brand: Culligan


Special Feature: Reduce TDS


Product Dimensions: 14.25"L x 9.25"W x 8.4"H


Package Information: Faucet


Installation Type: Under Sink


Power Source: Manual Operation


Model Name: EZ-Change Premium


Maximum Flow Rate: 0.5 Gallons Per Minute


Upper Temperature Rating: 100 Degrees Fahrenheit


UPC: 033663005600 807032976200 033663006461


Global Trade Identification Number: 61


Manufacturer: Culligan


Item Weight: 4.02 pounds


Department: Fixtures


Country of Origin: USA


Item model number: US-EZ-4


Batteries: 1 Lithium Metal batteries required. (included)


Is Discontinued By Manufacturer: No


Date First Available: January 16, 2007


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 17

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.

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Similar Products

Top Amazon Reviews

    • Recommended by my municipal water department
Size: EZ-4 (Best Filtration) Style: Replacement Filter
I've been using these filters for 4-5 years now, changing them every 3-4 months since I live in an area with a lot of iron in the water and a history of pFOS contamination. I got my first one directly from my local water department, and I've been using them ever since. The water quality from these RC-EZ-4 filters is excellent, and it's really important to me that they remove a lot more than any other type of filter. The quantity of water coming out of the dedicated spigot is pretty good, too. I use it for drinking and cooking and my pets' water. Changing out filters isn't that hard IF you align things correctly. I colored the directional arrows with magic marker so I could see them better to do this. As mentioned, I try to change the filter every 3-4 months (not every 6 months) to keep the water quality up. I'm always surprised at just how heavy a used filter is compared to a new one. It's done its job! ... show more
Reviewed in the United States on June 30, 2025 by Woof!
    • Excellent filter for a decent price
Size: EZ-1 (Good Filtration) Style: Under-Sink System
I had one of those filters that you put on the end of your faucet for a number of years. It worked pretty well until I finally noticed that water had started leaking out from the base of the faucet neck. Apparently after all this time the back pressure caused by that filter and the weight of it levering down on the neck was causing the internal gaskets to fail. I removed the filter and the leaks stopped. But, this left me without filtered water. I wanted filtered water still but without the hassle of a pitcher in the fridge or having to replace my entire faucet due to the back pressure and levering caused by the on the neck one. Looking on Amazon I found a number of filters of varying prices and ultimately I decided to take a chance on this Culligan unit because the price was decent, the name is well known to me, and it had pretty good reviews. So far in the month or so that I've had it installed I'm quite satisfied with it. The water comes out at a very decent pressure, far better than my old on the faucet based filter. The kit comes with a plastic bracket that fits to the wall, some plastic tubing, a little adapter to put in-line with your cold water feed, some screws, the filter cartridge and the faucet. The faucet is not a super high quality item. It's mostly plastic, but it feels pretty solid for my needs. It actually comes in several pieces that you put together during the installation. I started my installation by drilling a hole in the sink. Make sure you have a sharp drill bit of the right size. The size they ask for is 5/8" which is one size larger than you'll find in most off the shelf drill bit sets. I thankfully had a 3/4" bit laying around from a different project, but my bit was fairly dull after that previous project so drilling was a bit of a challenge for me. I compared my 1/2" bits to the threaded stem on the base of the faucet and decided it just was not worth the risk of making too small a hole. The threads on the stem are all plastic and could be easily damaged by jamming the works into a hole that wasn't big enough. So do yourself a favor and get the right size drill bit before you start. After I had the hole drilled I unscrewed the wing nut from the base of the faucet and removed the metal plate. This left a plastic gasket on the base of the faucet that came off and I had to put back in place. After looking at the pictures I finally realized that the handle is supposed to go on the side of the faucet so I set the faucet in the hole and then reached under the sink to put the metal plate on and thread on the nut. Be careful not to over-tighten this as you could easily strip those plastic threads. Once it was snugly on the base felt pretty solid. I then took the neck of the faucet and attached it to the base and it looked pretty sharp, with no sign of the mangled hole I had drilled to put this in place. Next I shut off the cold water and proceeded to disconnect the feed line from the cold water connection on my faucet. I applied a little nylon plumbers tape to the connection and screwed on the plastic connector that came with the kit. A little more plumbers tape on the bottom and I reconnected the cold water feed line. After that I took the plastic bracket and using a sharpie clearly market the in and out sides so I wouldn't get confused later and hung it on the back wall with the included screws. Once all the major pieces were in place I took the plastic hose line, this is the same diameter as the kit that feeds my ice maker on my fridge, and carefully measured and cut two sections. On the base of the faucet you'll have a little plug that goes into the tube and a collar that goes over the hose. This threads onto the base of the faucet and once snugged down creates a good connection. The other end you simply wet and insert into a friction lock on the plastic bracket. The other line is even easier as it uses the same friction locks on both the hose line adapter and the plastic bracket. Finally I took out ye olde sharpie and wrote the date on the filter to remind me when I had installed it and connected it to the bracket by twisting it into place. Once it was snugly connected on went the water and after a quick check for leaks I turned on the faucet and a jet of water came streaming out. The instructions say you have to let it run for about ten minutes or so to let it flush out material from the filter. After the directed time I filled up a cup of water and tasted the sweet tasteless taste of success. The best part is that there is absolutely no impact to the water flow on my regular faucet and the new faucet provides water at pretty much full pressure. I'm sure this will go down over time but it is much better than my old filter. Looking at this solution I can see where if I ever so desired to step up to the two or three cartridge solution I could easily swap out the bracket by simply removing the plastic hoses from the friction locks. So if you are questioning whether you need the single cartridge or three cartridge solution know that you should be able to easily upgrade. ... show more
Reviewed in the United States on August 25, 2012 by Bobmon
    • Easy, inexpensive & good tasting water.
Size: EZ-4 (Best Filtration) Style: Replacement Filter
Good tasting water & cuts how much calcium deposits are in my teapot by at least half. Check what it filters to make sure it does all you need. Not equivalent to Reverse osmosis & the price reflects that!
Reviewed in the United States on June 29, 2025 by Terri
    • Pretty good filter
Size: EZ-3 (Better Filtration) Style: Under-Sink System
Works as it should. However it does tend to leak water from time to time when it’s bumped or the sink is tapped. Otherwise it works as it should.
Reviewed in the United States on June 14, 2025 by MegR
    • Great price
Size: EZ-1 (Good Filtration) Style: Refrigerator System
Love it easy to install
Reviewed in the United States on June 12, 2025 by Dey'Adrian
    • Great Purchase
Size: EZ-4 (Best Filtration) Style: Under-Sink System
We have had this product for a couple of weeks now. The difference in the water is very noticeable. We were purchasing water by the gallon from a machine in our neighborhood. I'm using the Culligan water for my ice and it is smooth and comes out in one piece not breaking like it used to. The water does taste better (no taste). Very happy with this purchase. Also after looking at other filters the cost was definitely affordable. ... show more
Reviewed in the United States on April 26, 2025 by Elizabeth Masterton
    • Good value
Size: EZ-1 (Good Filtration) Style: Under-Sink System
Review Image by dan dan
Good kit for the price. Easy to install and works amazing from a well known brand. I can see and taste the difference in my drinking water. I ordered the "good" kit when it's time to replace the filter I will be ordering the "best" filter
Reviewed in the United States on May 11, 2025 by dan dan
    • Used daily on Refrigerator
Size: EZ-4 (Best Filtration) Style: Replacement Filter
Been using these on my refrigerator for years. They filter great and remove the chlorine taste from the water and ice.
Reviewed in the United States on May 13, 2025 by Vietnam Vet 66

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