Search  for anything...

YARNA Electronic Water Descaler – No-Salt Softener, Pipes to 4" CWD48

  • Based on 2,632 reviews
Condition: New
Checking for the best price...
$131.99 Why this price?
Save $341.69 was $473.68

Buy Now, Pay Later


As low as $22.00 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

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.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Oct 2
Order within 2 hours and 9 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Size: CWD 48 - 4" Pipe


Features

  • HOW IT WORKS: Yarna CWD48 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 4". 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 4" thick
  • WHY DESCALING IS BETTER THAN SOFTENING: The Yarna CWD48 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

Description

Unclog your pores, hydrate your skin, and unveil your natural beauty. Enjoy smooth, soft, PH-balanced skin. Say goodbye to dull, dry, tangly, and off-color hair by removing residual limescale buildup, and say hello to good hair days. Yarna CWD24 Yarna CWD30 Yarna CWD48 Maximum Pipe Diameter 3/8" - 1" Maximum Pipe Diameter 3/8" - 2" Maximum Pipe Diameter 3/8" - 4" Building Type Residential Building Type Residential Building Type Residential and Commercial Waveform Realtime Display No Waveform Realtime Display No Waveform Realtime Display Yes Power Cord Length 5 ft. Power Cord Length 5 ft. Power Cord Length 6.5 ft. Output Voltage 24 V Output Voltage 24 V Output Voltage 48 V

Brand: YARNA


Product Dimensions: 1"L x 1"W x 1"H


Material: Copper


Capacity: 1 tons


Included Components: Installation Kit


Package Information: Bottle


Installation Type: DIY


Purification Method: Electronic


Power Source: Corded Electric


Model Name: CWD


Container Type: Bottle


Installation Type: DIY


Purification Method: Electronic


Power Source: Corded Electric


Upper Temperature Rating: 194 °F


Supported Water TDS Level Maximum (PPM): 350


Item Dimensions L x W x H: 1"L x 1"W x 1"H


Capacity: 1 tons


Material Type: Copper


Brand Name: YARNA


Included Components: Installation Kit


Model Name: CWD


Model Number: CWD30


Manufacturer: Guru Brands LLC


Item Highlight: No-Salt, No-Waste Whole House Solution That Eliminates Hard Water Limescale, Fits Pipes Up to 4"


Number of Items: 1


Unit Count: 1 Count


Part Number: CWD48


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 2

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
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Easy of Installation and Maintenance
Size: CWD24 - 1" Pipe
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. ... show more
Reviewed in the United States on February 3, 2021 by Tom Gaunt

  • Easier set up, cheaper, smaller, and more effective than any other industrial Descaler.
Size: CWD 48 - 4" Pipe
My 4th and hopefully final descaler, purchased the Yarna CWD48 for just 100$ more than than the residential model, just from experience Phoenix residents need commercial level descalers that can handle the Phoenix water 900ppm irrigating at 50gpm. Pros: Fastest install ever, thick copper bands wind quick, outdoor waterproof , so small can put anywhere, live oscilloscope display, (I don't have to use my own oscilloscope to check status of my descaler any more. Treats up to 4" pipe, 1.2 miles, that's industrial grade , it will have no problem handling 900ppm at 50gpg I have been using electronic descalers for the past 10yrs to reduce amount of mineral build up in the kitchen and bathrooms, to make cleaning easy, and less frequent, no ring around the toilet bowl, any calcium build up on plastic shower heads wipes of with a sponge once a month or every other month. Added bonuses: my lawn irrigation drip system and sprinklers have very little build up and require little to no maintenance cleaning/changing heads, Haven't changed a drip or sprinkler head since I moved in 4yrs ago, which is rare in phoenix for drip systems have about 20 drip heads running all year and 20 sprinklers with K Rain (screw on) rotary heads. My misting system requires very little maintenance with a occasional cleaning of a few heads during the year, for a system of 40 misters with 0.3mm orifice this is unheard of in phoenix. This is my 4th electronic descaler : At first I didn't understand the importance for testing gpg/ppm which in Phoenix uses well water in the summer goes as high as 900ppm /52gpg drops to 500-600 in winter when it uses surface water. So Phoenix area residents require a descaler that will go up to at least 60gpg or 1000ppm, typical residential models are not designed for use in phoenix especially when you want to use for irrigation system which is up to 50gpm at 850ppm, you need to buy a industrial/commercial descaler or note the gpm and gpg rating if buying a residental My 1st descaler DIY PCB descaler, square wave generator - noticed enough difference that convinced me descalers do work Cons: low power 12-18Volts ,50 windings, weak inductance, constant frequency pros :great starter model for 20$ Scale Blaster residential model SB-70 - noticed a bigger difference. Pros: good product for 75$ used, would work well in northern cities Cons: had to mount indoors and runs signal wire out through wall required a lot of windings, only up to 19gpg, Industrial/commercial (SB Max older version which treats up to 100gpg) - worked excellent, great product. very expensive retail 999$ found used for 399$ ,very large had to install inside the house all though it is rated for outdoor use I couldn't find the information on heat tolerance levels and customer service via phone didn't or wouldn't give that information cause the model was discontinued, long summers of 120F create internal temps of southern exposed metal machine towards 160F I assumed that would shorten the life significantly. so I ran the signal wire through the wall and had to wrap the wire 210 windings around 3/4inch incoming copper, which was really difficult, would still be using it but after 4yrs of use the wave generator became very loud, since it was inside the house it was disrupting sleep at night, so I gave it away. (Newer model of SB-Max only treats up to 40gpg can't use in Phoenix) ... show more
Reviewed in the United States on November 30, 2020 by Curt Howard

  • (Updated) Objective test - the device failed; but when replaced with CWD48 it can provide value
Summary first: after 2 months experiment, the device fully failed to prevent calcination on kettle glass surfaces. The calcination could be removed only chemically. The company offered to install CWD48 model instead or in addition. I added CWD48, then waited for 3 months. The calcination on the kettle continues to form, but can be removed easily with the kitchen brush. 5% residue can't be removed. But I can live with that. It justifies the investment. Update: 01/07/22 I installed CWD48 model in addition and next to this one. in few weeks the calcination became soft and can be removed with a kitchen brush. This is a usable solution. The original experiment: I really want this solution to work, so let’s start with 5 stars. However, I was not able to find any credible science to back up the claims. Follow my progress as we have all the ingredients to a clean cut test. Ordering, delivery, packaging are all great. I bought few days before Prime Day and the company gave me the difference when I contacted them. This is the high end model, so there is no reason to say: maybe you should try something stronger. 07/13/21 Setup took me 30 min, as I expected. I used the entire coil and the distance between coils is far greater than half an inch; just a single straight pipe. Attached is the picture of the installation, and “before” pictures of the kettle. It was completely cleaned by a vinegar solution just 3 weeks prior. So we do have a problem, and the baseline for the test. The plan is to clean the kettle in one week from now and see what happens in 4 weeks. 08/09/21 deep cleaned the pot with a vinegar solution (3 new pictures attached) 09/05/21 see final picture :( in the end, the calcination came back. Perhaps, it’s little slower, and, perhaps, the crystallization is slightly different, but all in all, the device doesn’t work to improve the calcination situation on surfaces… ... show more
Reviewed in the United States on July 14, 2021 by Paul B

  • Edited: not recommended
Size: CWD 48 - 4" Pipe
Well I'm giving this a shot. We have a well and pressure tank. Our water maxed out the hardness strips when I tested I five minutes before install. Install is super easy but with limited space I really struggled to get it wrapped around the pipe a minimum of nine times like it said. I saw where someone else said to let it overlap rather than leave a gap so I tried to do that. We live where it's extremely cold and have wires along the pipes as well to keep them from freezing in the winter so I'm not sure if that will hinder it or not. I contacted support through email because everyone said they are amazing, I wasn't super impressed and I'm really frustrated because I sent emails with videos and pictures asking how to do it better, if this was acceptable, if this would work. I just got canned responses back saying to give it time. So no help with install at all, the only helpful response was that it has to be before the pressure tank or it won't make much difference. If you have a lot of exposed pipe I'm sure this would be easy but we have a small area and this has me unsure about whether it will work. The lack of tech support makes me less likely to recommend this as the reason I went with this product was because of the rave reviews about tech support. Edit: It's been a few months. The hardness strips are still maxed out but now there is a white powdery substance on EVERYTHING our water touches. I'm not sure what's going on but I'm not a fan and there has been no customer service assistance. Our water is still itchy and our skin is still rough feeling and our shower heads are getting clogged with the white powder. For this amount of money I definitely recommend something else. This won't help your hard water. ... show more
Reviewed in the United States on October 12, 2022 by FrostySloan

  • Great product; Great support; Highly cost-effective
Size: CWD24 - 1" Pipe
BOTTOM LINE: After 3 years... still working strong! Tremendous time-saver and money saver on continually replacing salt weekly to monthly! Customer support is fine also! My first interest in this were the reduction of unnecessary chemicals (salt), the cost and time savings as well as the technology. We have very hard water. The TDS (total dissolved solids) is extremely high. Lots of calcium precipitation with this or the salt-water treatments. Installation location on incoming city water pipe: We installed our Yarna unit before the house water shutoff valve and connected the cord to a standard wall outlet in the basement. We did not use an extension cord. We have unplugged and reinstalled the wrapping coils at least once as we wanted a tighter fit than we initially had. Hot Water Heater to Navien A2: We had an old 60 gallon hot water heater that we replaced with a Navien A2 unit after about 1.5 years of using the Yarna unit. Both are were in our basement installed just below the kitchen. The Navien has a pre-filter so after a year we had it serviced. There were some slivers of calcium buildup in the pre-filter which we removed. There has been no negative impact on the Navien A2 unit so it's working fine. Dishwasher: We have a Bosch dishwasher (15 years old?) that exhibited serious internal calcium (white) buildup on the bottom and sides after we decided to not use the salt-treated softwater approach. Distance from the Yarna unit is about 20' (basement to kitchen). Then we installed the Yarna CWD24 as our city water lines are 1" (CWD30 works for 2" max). After about a year or so, I noticed that the dishwasher deposits were coming off. Additionally, our dishes were looking better with less calcium on them. I eventually purchase the Bosch Dishwasher Quick Descaler (#00312918 - 2 pack). The first time I used it it really (!) cleaned the insides of the dishwasher. About 6 months later, I used it again and the insides are sparkling. So we have a 'new' dishwasher! ;-) Faucets: With such success on the dishwasher, we then went to our faucets (9 in the house - some chrome, some brass). I didn't do the hose connections on the outside. We put CLR in 50% strength on almost all faucets, some with 100% strength and let it soak over night to nearly a week! In all cases we had success. The only issue we still have would be related to where CLR can't get to but these are being taken care of via the Yarna unit's ability to 'soften/eliminate' the calcium buildup in the pipes. Shower heads: Same results with CLR but we were able to remove the shower heads and soak them. Toilets: Inside the water tanks we noticed the buildup and crusting of the calcium which is being neutralized still to this day. We did replace some of the water-closets workings but not all since the calcium made some parts 'hard' (flapper etc.). Some flappers had crust on them that eventually came off - somewhat encouraged by manually wiping these areas and stirring up the calcium deposits from the bottom of the tank to be flushed out. The actual bowl is cleaner also. Shower doors: After years of taking a shower without a softener and then using the Yarna unit we noticed that parts of the shower doors (glass and brass) were losing the calcium deposits (being washed off without any effort on my part). We then started using CLR (1.5" paint brush in a cottage cheese container) and then Kaboom to clean these doors even on cultured marble. I personally like CLR a bit better (used at 50% and Kaboom at 100%) but both work! Both have some 'slickness' to them but it's very minor when you're working in the shower/bath stalls. The shower doors, floor, brass etc all look 90% better but I'm still working on them. Crevices and screw heads take a bit more time. Water taste: Removes salty taste and makes water taste more 'normal'. This may be a personal preference. Cooking: Nothing changed except there's no calcium deposits that occur nor is there any residual 'salt' added. Health: Hard to determine but, with the Yarna unit, we're drinking water without the additives. I would easily rebuy! Actually thought about a 2nd one but I’m told it’s not needed. I don't know how long it will take to fully do our pipes. I don't know of any downsides unless you desire the salt and 'slicker' water. ... show more
Reviewed in the United States on July 8, 2023 by Hans Solo

  • Don't believe the nay-sayers, I was skeptical but it worked
Size: CWD24 - 1" Pipe
I was very skeptical this would work but thought I would give it a shot for the ease of installation and the cost. Prior to purchasing I read many reviews stating that these devices scientifically can't work and that they are just a scam. Well, I can confidently say that these nay-sayers were wrong even though they sounded very credible in their reviews. About 2 years ago my wife and I moved into a house on its own well, with all original plumbing since it was built in 1992. The water from the well was tested to be good when we bought the house and the previous owners raved about how good the water tasted, we agreed after drinking it. Although the water tasted great, it definitely had a lot of minerals in that caused a great amount of build up on all the faucets and also in the drains, causing flow issues. Even after we replaced the shower heads and remodeled the kitchen we had white mineral build-up within a month on the new shower heads and faucets, plugging the small spray holes and disrupting the flow. After installing this device I instantly noticed an improvement of the water feeling softer in when showering and washing dishes. It definitely lathers better and leaves your skin feeling less dried out. We have had salt water softeners in the past and it made the water feel very similar. After a few days it cleared out all the newer faucets/shower heads and started to break down the build up on the older original faucets. It even caused a leak in the the drain plumbing under one of the sinks because it broke down the mineral build up in the drain around one of the old seals (I was able to fix it by just taking out the sink drain and trap, cleaning it, and just reinstalling it). Additionally, the dishwasher is not leaving spots anymore and the stainless steel sinks have less spots. After a about week we've noticed all faucets are flowing better and and the old fixtures from 1992 are shedding lots of mineral build up. We can now delay replacing them until we do the bathroom remodels we have planned for the future. The kitchen faucets now spray as they are intended to without any plugged holes. We originally installed this device with the hope of cleaning out the mineral deposits in our plumbing that has built up over the years and hopefully restore some water pressure, and after the results I have already seen I am confident that this will accomplish that. Even though the device does not remove the minerals like a salt softener it definitely descales pipes and improves the quality of the water for our use. DON'T BELIEVE the people that say its a scam or the guys who says he's an electrical engineer and his wife has a few chemistry degrees and call it a pseudoscience scam. The proof is in the results! The only regret I have is not getting the next bigger model that is rated at pipe sizes larger than 1". I assumed my pipe feeding my pressure tank was only 1" but realized it was 1 1/4" when I went to install it. Instead of returning it for the larger one, I just installed it after the pressure tank where the pipe is smaller because I didn't want to spend any more money and I was very skeptical of it working anyway. Unfortunately I won't be able to descale the water going into the pressure tank unless I buy the CWD30, I may end up buying one later on since I am now a believer! Don't be afraid to buy this product this if your goal is to descale your pipes/fixtures, it will do that. Hopefully it will also improve your the quality of your water as it did mine. I typically don't leave reviews like this, but I would have appreciated a review like this when I was researching this product. I hope it can help someone else! ... show more
Reviewed in the United States on May 10, 2022 by Brian Monson

  • Super easy to install, But display is prone to going out, But Great customer care makes up for it.
Size: CWD 48 - 4" Pipe
Model-CWD48 POSITIVES: *Super easy to install, (no tools required) *Works as advertised. *Great & Fast customer service. *Beats a traditional water softener in so many ways. NEGATIVES: *It takes a while (about 6 weeks for me) to notice a significant difference in your water hardness, but it does work quite well... Until It Breaks! *The oscilloscope display is apparently prone to failure, leaving you no easy way to tell if the unit is still even functioning. Two days after I installed the 1st one, the oscilloscope display stopped working. I called customer service & they sent out a replacement the same day. They advised me that It's a known problem that they're working to fix, & that the unit IS in fact still working. I used the voltage detector on my stud finder, & found that it WAS still producing electricity, leading me to believe that it was still working. After I installed the replacement unit, it worked for about 2 or 3 months till the display stopped working AGAIN. So I checked it again, w/ my voltage detector, & although the display is dead, it too appears to still be functioning. I called customer support AGAIN, & without question, they immediately shipped out a 3rd unit that I received 2 Days Later. Because of how easy the awesome customer support team made things, & because the product does seem to make a significant difference in reducing the problems associated w/ hard water, I'm going to give it one more chance before I switch to something else. Hopefully the third time is the charm. I'll update this review after I find out how long this one lasts. ... show more
Reviewed in the United States on May 5, 2021 by Mike

  • A great alternative to a traditional salt-based water softener
Size: CWD24 - 1" Pipe
This is my second electronic descaler. I had a different brand in my previous home and had good luck with it, so when I moved, and the house had no water softener I know I needed to get something as Indiana has very hard water. I did more research before I purchased a new descaler. I ultimately chase the Yarna Descaler because the reviews were good, and it uses a higher voltage which should be more effective. The Yarna so far has met my expectations. There a few things to remember about electronic descaling when compared to using a water softener. The electronic descaler does not remove anything from the water, it charges the particles which makes them not crystalize to a surface. This process only last for about 48 hours, so water that sits for longer than that period goes back to its normal properties. Water left standing on a counter or a faucet can develop buildup if left. I will say the buildup is far less than if you used no device at all to treat the water. I just feel it is important that expectations need to be realized in accordance to what an electronic descaler can and cannot do. To me the benefits exceed the negative properties when compared to a traditional water softener. Here are a few things to keep in mind with any electronic descaler: Pros: • Magnetic water softeners are less expensive than some of the other options on the market, including salt-based water softeners. • They tend to have a long life – in fact, the filtration bed of a quality magnetic system may last many years. • Because they don’t use salt, a magnetic water softener won’t add any sodium to your diet and the water is safe to drink and use to water your plants. Cons: • Magnetic water softeners don’t remove minerals from your water. Instead, they alter the chemical composition of the water to prevent scaling. • While they do prevent some scaling, magnetic water softeners won’t help prevent scaling in places where water sits for more than 48 hours, including your hot water heater. • These home water softeners are not as efficient as some of the other options available because water must pass within range of the magnetic coils embedded in the sides of the filter to be softened. So, it is important to place this unit on the water line before it goes to a water heater or any faucets. Overall, I recommend the Yarna descaler and it is a great alternative to a traditional salt-based softener. I’ve had mine installed for almost a year and no issues other than very minor lime build-up on faucets that do not get used often which is to be expected with any electronic descaler. I do not miss buying salt and lugging it into the hopper. I feel the Yarna descaler is a high quality and worthy replacement to a traditional system. ... show more
Reviewed in the United States on December 18, 2020 by Derek Dailey

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...