Search  for anything...

iSpring Whole House Water Softener System, 50,000 Grain High Capacity Removes Hardness with Automatic Backwash and Low Salt Alarm, Hardness & Scale Reduction in House and Commercial Water Use, WCS50KG

  • Based on 59 reviews
Condition: New
Checking for the best price...
$1,699.99 Why this price?

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term if approved
  • – 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, Apple Pay, and PayTomorrow. 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

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 Tuesday, Jul 7
Order within 17 hours and 19 minutes
Available payment plans shown during checkout

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

Color: White 50K Grains


Features

  • Compact design for space-saving installation: The one-tank compact design of the iSpring WCS50KG whole house water softener helps save valuable space in your home, making it easier to install in tight or limited areas. The system is designed for indoor installation and is intended for cold water supply only. It features an inlet/outlet connector with the options of 1" or 34" NPT, providing flexibility and compatibility with different plumbing setups.
  • Hassle-free maintenance with automatic backwash and media regeneration: The water softener's automatic backwash and media regeneration feature eliminates the need for manual cleaning. This not only saves you time and effort but also extends the lifespan of the resin and enhances the system's performance, ensuring consistent and efficient water softening.
  • High-quality components for reliable performance: Equipped with pre-filled, high-quality ion exchange resin, a corrosion-resistant and rust-free fiberglass tank, and a durable automatic control valve, the iSpring WCS50KG is built to last. These components work together to provide reliable water softening and maintain the system's effectiveness over time.
  • Enhanced user experience and convenience: The iSpring WCS50KG whole house water softener goes beyond basic functionality to enhance the user experience. It can adjust hardness levels based on water hardness and the number of people in the household, ensuring optimal water softening. The system supports multiple languages for easy operation and includes features like a salt-shortage reminder and a holiday mode to guarantee continuous availability of soft water.

Brand: iSpring


Special Feature: Automatic Backwash, Heavy Duty, Leak Proof, Low Salt Alarm, Programmable, Self Cleaning, Water Saver Technology See more


Product Dimensions: 18"L x 11"W x 42"H


Material: Fiberglass


Capacity: 6.9 Pounds


Included Components: One Tank Compact Design Water Softner


Package Information: Tank


Installation Type: Freestanding


Purification Method: Ion Exchange


Power Source: Ac


Other Special Features of the Product: Automatic Backwash, Heavy Duty, Leak Proof, Low Salt Alarm, Programmable, Self Cleaning, Water Saver Technology


Container Type: Tank


Installation Type: Freestanding


Purification Method: Ion Exchange


Power Source: Ac


Supported Water TDS Level Maximum (PPM): 300


Item Dimensions L x W x H: 18"L x 11"W x 42"H


Capacity: 6.9 Pounds


Item Weight: 102 Pounds


Material Type: Fiberglass


Brand Name: iSpring


Included Components: One Tank Compact Design Water Softner


Model Name: Whole House Water Softener System


Model Number: WCS50KG


UPC: 810004173675


Manufacturer: iSpring


Part Number: WCS50KG


Item Type Name: Up to 50,000 Grains High Capacity


Unit Count: 1 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jul 7

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
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great Product!
Color: White 50K Grains
I bought this model because I needed specific dimensions for my install, and it fit perfect in a tight spot. Unit came in great condition and actually looks very stylish. Install was easy and quick, and the video on the specifics for installation was very clear. I'm honestly surprised how well this unit works. We have very hard city water and we went from 350+ PPM to less than 15 PPM after installation. Water quality is great, pressure is great, and it just does its own thing automatically in terms of regeneration, etc. Very happy we spent the extra money for this model and very happy with the quality and ease of product. Registration was quick as well and Michele from customer service was very quick and polite. Thanks so much! ... show more
Reviewed in the United States on August 20, 2025 by Dorian Gray

  • Super soft water, works exactly as represented!
Color: White 50K Grains
We had a 16 year old water softener (major brand) that started having issues and we made several repairs but nothing fixed it. We did not want to spend lots of $$’s to replace. I did some research and we decided to try the iSpring model WCS50KG. For us the installation was fairly easy but we are very mechanical and the plumbing existed from the other softener we had. Getting the settings correct took 2 to 3 weeks. We wanted the same level of soft water (or softer) that we’ve had for 16 years. Everything is working correctly, water may be softer than the prior unit and it’s awesome. The unit comes set at maybe a midway point for water softness. We made adjustments and also set it up as if we have 5 people in the home. It’s been in service for about 5 to 6 weeks and we have had no issues. We also had some questions and reached out to the manufacturer. They were very responsive and helpful. Would definitely recommend this product. ... show more
Reviewed in the United States on September 19, 2024 by jeff henson

  • Poor Experience with the Company and Product
Color: White 50K Grains
Looks great on the Amazon page, but its not all that. I've had it for 7 months now and it seems to do an ok job of softening the water, BUT, it is very loud when it regenerates and even when someone just turns on the faucet. Loud swooshing sound I didn't have with my last softener. It is located in the garage right next to the guest bedroom. So loud right through the insulated wall! The owners manual is lame, basic, and confusing. So I called them to get some details and tips and ask a few questions. They don't answer their phone during working hours - it goes to voicemail, but they don't call you back. Unacceptable customer "service". Wish I had bought a cheaper name brand machine like my neighbor did. He's had no problems. Also the product arrived on a crate on its side and they say above it should always be upright. When I asked them should I send it back, they said nah, it will be fine. So I have no way of knowing if it is working 100% properly or not. Don't be fooled by the slick advertising above. Look elsewhere. ... show more
Reviewed in the United States on March 2, 2026 by Freedom Fighter

  • Ignore PPM and TDS for hard water; use a chem test. Unit softens water from 10, to less than 1 gpg
Color: White 50K Grains
I just deleted my prior view. I won't go into a whole lot of irrelevant detail, other than to post this update: 1) My household water with the 50KG unit installed decreased water hardness from 10 gpg to less than 1 (almost unmeasurable) gpg. The unit works great! 2) If the unit arrives and is not upright (mine came strapped on crate on it's side), refuse shipment (see the manual). It's possible to put it into service, but you may be struggling to fix the unit to do so. 3) Test your water before and after the unit, using the "soap test", and/or a chemical test like the Hach 5b test, to be certain the unit is actually softening your water, as well as to provide proper gpg input of your hardwater, when you configure the unit's electronics. FORGET the TDS/PPM units advertised on Amazon for hard water testing. TDS and PPM won't tell you how your water had changed. It was accurate (i.e. 170 PPM) for testing the water hardness, but the "after" test said it was now 145PPM. Yet, the GPG dropped from about 10 gpg to less than 1 gpg (i.e. very soft water). 4) Installation: Use ** BOTH ** iSpring's video and the directions when installing. Reason? There are elements included in one that are missed in the other, and vise-versa. It should be easy to install and configure, but it just isn't. There are multiple, confusing steps for starting the initial resin tank wash, and first manual regeneration, that I found ... problematic. Kind of like learning a series of dance steps. There's a "balloon" (i.e. vinyl spacer) that needs to be removed - don't forget that. This 50KG unit required three, 40 lb bags of (Morton) salt pellets to start. (Maybe a fourth would have fit, but 3 bags gets you over 2/3's full.) 5) Installation #2). One question I never saw answered is what sort of supply thread fitting was required to mate your supply pipes to the 3/4" or 1" unit's poly connections. It's NPT. FEMALE NPT (i.e. FPT, FNPT). 6) Customer Service: Their response was always prompt and cordial. John helped answer a few "newbie" questions, and Nick (Manager) helped out also. The only "ding" I had was that when I explained that the PPM test I was usnig showed only a 15% improvement, the response was the discussion about TDS vs PPM, vs hardness. When I put the question directly to them about what test I could use to actually verify the before/after results of this unit's install, they were vague. "Most people feel the difference" is true, but subjective. "Send it to a lab" might be valid, but when you're about 10 days short of the Amazon return deadline, sending off a sample and waiting for the analysis, isn't really the direction I was looking for. As I mentioned in #3 above, there are a couple of tests, one is free, the other is not, but it beats both the cost and timeline of a lab test. But again, I thought the customer service response was overall terrific. It's nice when you open a ticket or place a call, that someone in the USA actually answers the phone (not a recording), or when you escalate a ticket, a manager picks up the phone and calls back within about 20 minutes. Can't beat that. I'm not the "average customer". Most folks are looking for the type of verification that I was seeking. However, I've been burned before on water treatment units, and wanted to be certain that I was solving the problem with this unit. ... show more
Reviewed in the United States on July 18, 2025 by Scott

  • Just installed, but early results are impressive!
Color: White 50K Grains
Why did you pick this product vs others?: Installed this water softener this weekend, replacing a different salt-free ION exchange system that wasn't softening anymore. The picture says it all. The test strip on the right is our very hard, untreated water. The test strip on the left is the same water after being treated. Pretty amazing. Will update if anything changes, but so far the build quality seems really good, the menu is easy to navigate, and the size is perfect for our limited space. My only nitpick is I wish it came with brass fittings. The plastic ones it comes with are pretty heavy duty, and I didn't have any issues with them, but at this price, brass fittings would be nice. ... show more
Reviewed in the United States on July 6, 2025 by Bill B.

  • Great support
Color: White 50K Grains
I purchased my product in April and it had an issue with the head unit not getting power. I contacted iSpring and they sent me a new head unit within a couple days. I appreciate the timeliness in resolving my issue. Thank you!
Reviewed in the United States on December 19, 2024 by Anthony Solares

Can't find a product?

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