---
product_id: 256246698
title: "US-EZ-4"
brand: "culligan"
price: "₩399716"
currency: KRW
in_stock: null
reviews_count: 6
category: "Culligan"
url: https://www.desertcart.kr/products/256246698-us-ez-4
store_origin: KR
region: South Korea
---

# 0.5 GPM flow rate Twist-on/off easy filter change NSF/ANSI certified multi-contaminant removal US-EZ-4

**Brand:** culligan
**Price:** ₩399716
**Availability:** ❌ Out of Stock

## Summary

> 💧 Elevate your hydration game with effortless purity and style!

## Quick Answers

- **What is this?** US-EZ-4 by culligan
- **How much does it cost?** ₩399716 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/256246698-us-ez-4)

## Best For

- culligan enthusiasts

## Why This Product

- Trusted culligan brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Filter Swaps:** Innovative twist-on/off cartridge replacement means zero mess, no tools, and no water shutoff needed.
- • **Sleek & Space-Savvy Design:** Under-sink installation with premium chrome faucet blends seamlessly into your modern kitchen aesthetic.
- • **Smart Filter Life Indicator:** Built-in LED alerts you exactly when it’s time to replace the filter—never guess, always fresh.
- • **Pure Hydration, No Compromise:** Delivers crystal-clear, great-tasting water straight from your dedicated faucet for drinking and cooking.
- • **Advanced Multi-Contaminant Defense:** Reduces lead, mercury, cysts, chlorine, PFAS, and more—backed by rigorous NSF/ANSI certifications.

## Overview

The Culligan US Change Sink Drinking Water System EZ-4 offers premium under-sink filtration with a dedicated chrome faucet, delivering up to 0.5 gallons per minute of clean, great-tasting water. Featuring a twist-on/off filter cartridge that lasts up to 6 months or 500 gallons, it removes a broad spectrum of contaminants including lead, mercury, cysts, chlorine, and PFAS. Certified to NSF/ANSI Standards 42 and 53, it includes a smart LED filter life indicator and all installation hardware for a quick, tool-free setup.

## Description

Product Description Premium US-EZ-4 Change system provides clear, clean, great-tasting water for drinking and cooking to a dedicated faucet. The included RC-EZ-4 Advanced filtration cartridge can filter 500 gallons and last up to 6 months. Avoid the mess of changing traditional cartridges and eliminates the need for buckets, towels, wrenches, and other tools. Tubing and installation hardware is included. A built-in LED filter life indicator takes the guess work out of when to change your filters. 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.

Review: Cheap and best. - Cheap and best water filter for dubai water purification. I got it fixed by a plumber
Review: Using this as an inline water filter for my plumbed in coffee maker to maintain NSF and warranty requirements. This version (of 4 types), allows for up to 3000 gallons and meets NSF requirements as per the warranty.

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000NNPVUS |
| ASIN  | B000NNPVUS |
| Batteries | 1 Lithium Metal batteries required. (included) |
| Batteries  | 1 Lithium Metal batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | No |
| Battery Cell Type | Lithium Metal |
| Best Sellers Rank | #77,387 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #184 in Under-Sink Water Filters |
| Color | Chrome |
| Customer Reviews | 4.4 4.4 out of 5 stars (3,564) |
| Customer reviews | 4.4 4.4 out of 5 stars (3,564) |
| Date First Available | 7 August 2012 |
| Date First Available  | 7 August 2012 |
| Department  | Fixtures |
| Flow Rate | 0.5 Gallons Per Minute |
| Included components | head assembly, RC-EZ-4 filter cartridge, lead-free faucet, 1/4" thick clear tubing, mounting hardware, cartridge change reminder sticker, faucet battery |
| Installation Method | Under Sink |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 1.86 Kilograms |
| Item model number | US-EZ-4 |
| Item model number  | US-EZ-4 |
| Manufacturer | Culligan |
| Manufacturer  | Culligan |
| Material | Activated Carbon, Stainless Steel/Plastic |
| Number Of Pieces | 1 |
| Part number | 01019054 |
| Plug Profile | Plate Mount |
| Power source type | Manual (Water Pressure) |
| Product Dimensions | 36.2 x 23.5 x 21.34 cm; 1.86 kg |
| Product Dimensions  | 36.2 x 23.5 x 21.34 cm; 1.86 kg |
| Size | EZ-4 (Best Filtration) |
| Special Features | Change Filter Indicator |
| Specification met | certified frustration-free |
| Style | Under-Sink System |
| Water Consumption | 0.5 Gallons per Minute |

## Product Details

- **Brand:** Culligan
- **Capacity:** 500 Gallons
- **Material:** Activated Carbon, Stainless Steel/Plastic
- **Product dimensions:** 36.2L x 23.5W x 21.3H centimeters
- **Special features:** Change Filter Indicator

## Images

![US-EZ-4 - Image 1](https://m.media-amazon.com/images/I/71BQYk8OVBL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Cheap and best.
*by H***N on 14 April 2021*

Cheap and best water filter for dubai water purification. I got it fixed by a plumber

### ⭐⭐⭐⭐⭐ Review
*by S***N on 22 January 2021*

Using this as an inline water filter for my plumbed in coffee maker to maintain NSF and warranty requirements. This version (of 4 types), allows for up to 3000 gallons and meets NSF requirements as per the warranty.

### ⭐⭐⭐⭐⭐ Review
*by R***Y on 7 August 2017*

UPDATE Sep 2019: It's been more than a year using the SAME CARTRIDGE. Our water processing plant is currently having issues with the quality of water and its coming out of the pipes very dirty. Using just the BASIC cartridge, the water comes out crystal clear, drinkable. This baby is amazing. Still no leaks whatsoever. Buying another replacement cartridge now just in case. Oh, the nut that tightens the unit to the sink broke because its plastic. Just buy a steel nut and problem solved. Should cost you like 3 dollars. ------------------------------------------------------------------------------------------- ORIGINAL REVIEW: After reading the reviews on this, I was skeptical. Some people said that the filter was not of enough quality or that it would not filter the necessary impurities. I considered that we live in a metropolitan area where the city water is just about decent. So we went with the basic filter option. Also, a reverse osmosis system is very expensive and wastes a ton of water (about 3 gallons of waste per 1 gallon of drinkable water). I have to say the results are amazing, even with the Basic filter: - No solids or visible impurities in the water. This means no "floaties" or "flakes" which is the way people refer to the calcium, manganese or magnesium precipitates that can be seen in cold or room-temp water. Although these precipitates are harmless (they in fact occur naturally in other foods we eat), they taste funky and look rather discouraging to drink. This filter took out all of that. - The taste of the water is great. Even at room-temp, the water is easy to drink and delicious. - the water pressure is quite nice with the basic filter. (see pictures) As for the installation, just follow the instructions and a few Pro-tips: PRO TIP: The mark included in the white silicone tube is 5/8 inch long. When you cut the tube to your liking, go ahead and mark the other side so you'll have no trouble fitting it to the right depth. PRO TIP: If you need to drill the extra hole in your sink. It will require the 9/16 bit. I tried the 5/8 hole as mentioned in the instruction, but the white tube does not fit. Use these to drill the hole: - TEMO M35 cobalt 9 size double flute step drill 3/8" shank 1/4" to 3/4" - CRC 03400 16oz Truetap Cutting Fluid Heavy Duty - Starrett 117C Center Punch With Round Shank, 4" Length, 1/8" Tapered Point Diameter You can check out my reviews on these 3 tools as well, for more details on how to use each for this application. PRO TIP: DO USE plumber's tape (the white one) on all male fittings. This will ensure no leakage. PRO TIP: when i first turned on the water, nothing came out. This was because the filter needed to click TWICE when tightening it in. Just make sure its nice and tight. Installation observations: - No leaks whatsoever were observed. A few people have complained about leaks, for us, this was not the case. We did use plumber's tape. - The process was very straightforward. Took us more time to clear out the area under the sink, than it took to install. - We left the filter loose (did not mount with screws) to be able to take it out and replace it easier.

## Frequently Bought Together

- Culligan US Change Sink Drinking Water System with Dedicated Faucet and Premium Filter, EZ-4 (Best Filtration), Chrome
- Waterdrop Premium Water Filter Replacement, EZ-Change for Culligan RC, IC, US-EZ, 2K Gallons, Pack of 2
- Waterdrop Advanced Water Filter Replacement - RC 3, EZ Change - 2K Gallons (Pack of 2) for Culligan, Brita, DuPont & More

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-31*