---
product_id: 376648077
title: "Capacitive Electronic Water Descaler System - Alternative Water Softener Salt Free for Whole House, Reduces the effects of Limescale [CWD24, Max 1\" Pipe]"
brand: "yarna"
price: "₩555562"
currency: KRW
in_stock: true
reviews_count: 5
category: "Yarna"
url: https://www.desertcart.kr/products/376648077-capacitive-electronic-water-descaler-system-alternative-water-softener-salt-free
store_origin: KR
region: South Korea
---

# Patented electric pulse tech Salt-free, mineral-friendly water DIY installation under 30 mins Capacitive Electronic Water Descaler System - Alternative Water Softener Salt Free for Whole House, Reduces the effects of Limescale [CWD24, Max 1" Pipe]

**Brand:** yarna
**Price:** ₩555562
**Availability:** ✅ In Stock

## Summary

> 💧 Scale-free living, salt-free savings — upgrade your water game today!

## Quick Answers

- **What is this?** Capacitive Electronic Water Descaler System - Alternative Water Softener Salt Free for Whole House, Reduces the effects of Limescale [CWD24, Max 1" Pipe] by yarna
- **How much does it cost?** ₩555562 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/376648077-capacitive-electronic-water-descaler-system-alternative-water-softener-salt-free)

## Best For

- yarna enthusiasts

## Why This Product

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

## Key Features

- • **Whole House Protection:** Treats water for your entire home, extending appliance life and improving water quality.
- • **Plug & Play Installation:** Fits any pipe ≤1" with zero plumbing skills required—get started in 30 minutes.
- • **Visible Results in Weeks:** Cleaner faucets, sudsier dishes, and softer water felt within 2-12 weeks.
- • **Eco-Friendly & Cost Saving:** No salt, no water waste—save money and reduce environmental impact.
- • **Effortless Limescale Breakdown:** Patented capacitive pulses dissolve scale without chemicals or salt.

## Overview

The Yarna CWD24 Capacitive Electronic Water Descaler is a patented, salt-free alternative to traditional water softeners. Using electric pulses controlled by a microchip, it breaks down limescale crystals throughout your whole house plumbing without removing beneficial minerals. Easy to install on pipes up to 1" diameter, it reduces scale buildup, lowers maintenance costs, and improves water quality without salt or water waste. Users typically see noticeable improvements within weeks, making it a smart, eco-conscious choice for modern homes.

## Description

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Review: Si, reduce el sarro. - Fácil instalación. Si reduce significa mente el sarro
Review: Easy of Installation and Maintenance - I've lived in my historic home for 23 years which has a 130 year old dirt floor cellar and steep steps to get down into the cellar. I've fought lime build up for years but resisted getting a water softener due to the space constraint (view picture) and then the thought of hauling salt down the steep stairs monthly just wasn't an option. I found the Yarna CWD24 on desertcart and it was the answer to my problems. Installation was as easy as you can get and took about 30 minutes. I spent the most time routing an extension cord to the Yarna CWD24 so I could plug it in. Best of no salt is required, so no monthly trips with bags of salt down my steep steps. I will report weekly my observations about my water quality and progress with lime scale removal. UPDATE: 10 days since I've installed my Yarna CWD24 and I've seen a big difference with my water. About 2 days in when doing my dishes I finally saw my dish detergent start producing suds or bubbles and it seems that each day there are more suds than the day before. My toilet bowls stay noticeably cleaner as does my tub. The water feels different when showering too. I'm watching the lime on a couple of my faucets to se how long before they clear up. I have noticed some flaking already. UPDATE 2: It's been another couple weeks and I've noticed two things. 1. The lime build up on my faucets are gone! I'm not sure when this happened but recently I noticed my kitchen faucet sprayer was spraying through all the nozzle openings. I usually have to clean them every two weeks with a toothpick but no more! 2. I've been replacing my old iron water pipes with PEX and cleaning the hot water heater was on the list because I could here the gurgling/bubbling when the heater started up. This is a symptom of thick lime residue in the bottom of the tank. As I finished replumbing I noticed the gurgling/bubbling had stopped. Yarna just exceeded my expectations as it dissolved the lime sediment in hot water heater. I'm totally sold on this product. 3. My interaction with Yarna customer service and follow-up is exemplary (timely and helpful). There were no issues with the product it was follow-up on my registration.

## Features

- HOW IT WORKS: Yarna CWD24 is a Patented alternative water softner for homes that treats water with electric pulses generated within the electronic unit and controlled by a micro-chip! These pulses are transmitted via our Ultra Flat Impulse Bands which breakdown crystals that would otherwise buildup into limescale, which can break appliances.
- WHO BENEFITS FROM YARNA: Our customers report cleaner pipes and faucets, lower costs for descaling and heating, and better overall water quality using our whole house water softener system alternative. Depending on the current condition of your plumbing, it may take up to three months to observe a significant improvement
- EASY INSTALLATION: All you need is access to a minimum of 10" of free pipe space with a maximum pipe diameter of 1". Yarna whole house water descaler is completely DIY with no need for any tools or specialized help. Our whole house water descaler works with any type of piping up to 1" thick
- WHY DESCALING IS BETTER THAN SOFTENING: The Yarna CWD24 water softener descaling system won't eliminate beneficial minerals from water. Additionally, unlike traditional whole house water softeners, Yarna does not require the use of salt and does not allow water to be wasted

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07X7XYKRB |
| Brand | YARNA |
| Brand Name | YARNA |
| Capacity | 1 tons |
| Container Type | Dispenser |
| Customer Reviews | 4.0 out of 5 stars 1,595 Reviews |
| Included Components | Installation Kit |
| Installation Type | Under Sink |
| Item Dimensions L x W x H | 25L x 25W x 25H millimeters |
| Manufacturer | YARNA |
| Material | Copper |
| Material Type | Copper |
| Model Name | CWD |
| Model Number | 35435 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Other Special Features of the Product | Chlorine Reduction |
| Part Number | CWD24 |
| Power Source | Corded Electric |
| Product dimensions | 25L x 25W x 25H millimeters |
| Purification Method | Capacitive |
| Special features | Chlorine Reduction |
| Supported Water TDS Level Maximum (PPM) | 1000 |
| UPC | 040962816677 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** YARNA
- **Capacity:** 1 tons
- **Material:** Copper
- **Product dimensions:** 25L x 25W x 25H millimeters
- **Special features:** Chlorine Reduction

## Images

![Capacitive Electronic Water Descaler System - Alternative Water Softener Salt Free for Whole House, Reduces the effects of Limescale [CWD24, Max 1" Pipe] - Image 1](https://m.media-amazon.com/images/I/61ijhxL798L.jpg)

## Questions & Answers

**Q: I have read that this process conditions the water and that it only looses its scaling properties for some time (72hrs?.  Is this true of your device?**
A: Yes. Water sitting in a container after it has been treated by our product will revert back to the original state in 2-7 days depending on the temperature, the warmer the better.

**Q: Why is your product more expensive than the rest? How is this different?**
A: That is a very good question, not all descalers are created alike, or function the same way. So let’s go through some aspects:
 
-       Basic operating principle: the Yarna uses a capacitive effect. Most other products have electro-magnetic or simply magnetic effects. The capacitive technology is far more effective and here is why. The two wires together with the water form a capacitor. The role of a capacitor is to store and release energy. The capacitive technology always uses water to its own advantage. Compared to capacitive, the EM effect always struggles to penetrate the pipes and water. So you need a much higher energy to generate a strong enough EM field. Small devices with 12V power supplies just can’t deliver that.  Having the water inside the pipes as our ally and courier, we are able to deliver all the energy right where it is needed (at the Calcium and Magnesium) 
-       Frequency of the impulses: depending on the water speed you need a different frequency of the impulses that are discharged. Some other devices take this into account also, however only somewhat. We have the largest range, from 3 to 33kHz, more than enough for all scenarios. Our device will be effective from the slightest drip to 20 gallons per minute.
-       Works with any grain per gallon: to our knowledge this is the only device that can do that. Because we can deliver plenty of energy and we have the variable frequency we can successfully treat any hardness. The only condition is imposed by the max 2” pipe diameter.
-       Emphasis on quality: every component, from the aluminum enclosure to the active impulse bands to even the zip ties are high quality and built to last. 
 
Also regarding the price, our device is actually very affordable compared to other devices with similar technologies. Similar products range from $500 to $1500, with comparable specifications. We tried to implement the same technology in a much more affordable package so that anyone could install one in their home.

**Q: Any benefit to installing a second unit before our water softener that is in need of descaling?**
A: Thank you for your question!

If you are referring to installing 2 water descalers, then the answer would be, you will need one per household.

It will also depend on your water softener because If you have a salt-based water softener, our product is redundant. And the same is true if you have a Yarna installed, and here is why. Consider the following scenarios:

1. The Salt Water Softener is installed first. When the water hits the softener it will retain calcium (the main component of limescale) and release salt instead. This system will pull out most if not all the calcium and replace it with salt. The Yarn Descaler installed after the saltwater system won’t have anything to act upon. In our opinion salt in the water means trading one nasty side effect for another. Excess salt is highly corrosive and not so good for the body.
2. The YARNA Descaler is installed first. The water reaches the installation point and the electric field converts the calcium into a different form of calcium that will not adhere to anything (the pipes, appliances, etc). You still have calcium and magnesium in the water. Generally, calcium in the water is considered healthy. However, you eliminate all the negative side effects that the untreated minerals have on the pipes. Also, in this case, the now treated calcium (although harmless) will enter the saltwater softener and the same replacement process takes place. You’ll end up with salt in the water.

This is why our recommendation is to chose one of them and NOT have both working. Depending on what you want/need I strongly suggest installing only one of the two. If you want no minerals in the water then salt systems are the way to go. If you want to eliminate the nasty side-effects of calcium, Yarna will do that.

But if you are using a non-salt water softener then you can install our Water Descaler before it. 

I hope that answered your question.

**Q: Does it help get rid of ferrous iron ?**
A: No, just calcium carbonate and magnesium carbonate. And just to be clear, it doesn't get rid of them, they are still in the water but they don't 'stick' to glass doors, dishes, or the insides of pipes.

## Customer Reviews

### ⭐⭐⭐⭐ Si, reduce el sarro.
*by U***. on 3 December 2025*

Fácil instalación. Si reduce significa mente el sarro

### ⭐⭐⭐⭐⭐ Easy of Installation and Maintenance
*by T***T on 3 February 2021*

I've lived in my historic home for 23 years which has a 130 year old dirt floor cellar and steep steps to get down into the cellar. I've fought lime build up for years but resisted getting a water softener due to the space constraint (view picture) and then the thought of hauling salt down the steep stairs monthly just wasn't an option. I found the Yarna CWD24 on Amazon and it was the answer to my problems. Installation was as easy as you can get and took about 30 minutes. I spent the most time routing an extension cord to the Yarna CWD24 so I could plug it in. Best of no salt is required, so no monthly trips with bags of salt down my steep steps. I will report weekly my observations about my water quality and progress with lime scale removal. UPDATE: 10 days since I've installed my Yarna CWD24 and I've seen a big difference with my water. About 2 days in when doing my dishes I finally saw my dish detergent start producing suds or bubbles and it seems that each day there are more suds than the day before. My toilet bowls stay noticeably cleaner as does my tub. The water feels different when showering too. I'm watching the lime on a couple of my faucets to se how long before they clear up. I have noticed some flaking already. UPDATE 2: It's been another couple weeks and I've noticed two things. 1. The lime build up on my faucets are gone! I'm not sure when this happened but recently I noticed my kitchen faucet sprayer was spraying through all the nozzle openings. I usually have to clean them every two weeks with a toothpick but no more! 2. I've been replacing my old iron water pipes with PEX and cleaning the hot water heater was on the list because I could here the gurgling/bubbling when the heater started up. This is a symptom of thick lime residue in the bottom of the tank. As I finished replumbing I noticed the gurgling/bubbling had stopped. Yarna just exceeded my expectations as it dissolved the lime sediment in hot water heater. I'm totally sold on this product. 3. My interaction with Yarna customer service and follow-up is exemplary (timely and helpful). There were no issues with the product it was follow-up on my registration.

### ⭐⭐⭐⭐⭐ Know that it will perform as stated
*by B***F on 7 February 2021*

The product is neat, clean, compact and easy to install. I will write a further review later on it's performance as I just installed it on February 7, 2021. Feb 15, 2021 Took 15 minutes to install and within 2 days was noticing a vast improvement in well water quality. In less than 2 weeks the brown stains in the toilet bowls are disappearing. I was skeptical that this product would perform as described at first, but I would recommend this unit for use with any household water system. no more lugging bags of salt for me. Don't hesitate to buy this unit, you'll love it.

## Frequently Bought Together

- YARNA Capacitive Electronic Water Descaler Whole House Solution - No-Salt Softener System, Reduces Limescale Effects and Mineral Buildup, Compatible with Pipes Up to 1 Inch, Model CWD24
- Varify Water Hardness Test Kit - Water Testing Kit for Home, Drinking, Well, Spa, Swimming Pool, Softener, Dishwasher & More - Hard Water Test Strips for Calcium, Magnesium etc (0-425 pmm, 150 Strips)
- DoubleCheck Water Hardness Test Kit 200 Strips with Sample Cup - Hard Water Testing Strips (0-25 gpg / 0-425 ppm)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-09-15*