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iSpring WCS45KG Whole House Water Softener with Backwash Feature - 45,000 Grain Capacity for Households and Business

14 total reviews

Regular price $1,558.99
Sale price $1,558.99 Regular price $1,558.99
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In stock · Ships within 1–2 business days

iSpring WCS45KG
$1,558.99

Features

whole house water softener
  • WCS45KG is easy to install

    Easy to Install

    DIY Installation with basic plumbing knowledge

    1" NPT Inlet/Outlet

    Power adapter, hex key, sewage and overflow pipe, clamps, connect screws, o-rings, and grease included

  • WCS45KG is easy to use

    Easy to Use

    With pre-filled resin, you just need to add salt to make it work

    The system can be set up based on your water condition and water usage

    You can also adjust the hardness of filtered water with this system based on your preference or requirements

    Multi-Language Function: English, Spanish, French and other languages are available.

  • WCS45KG is easy to maintain

    Easy to Maintain

    The system can be set up for automatic backwash and media regeneration

    No need for manual cleaning

    Immediate or delayed manual regenerations are also available if needed

    Built-in vacation mode function to keep the water inside the equipment flowing regularly and prevent algae and bacteria when you are away

  • Ispring provides life time customer support

    Easy to Ask

    If you have any questions or concerns about this water softener, please feel free to reach out. We are always happy to help!

    We provide life-time tech support at iSpring. If you or your plumber have any issues with installation, please reach out.

WCS45KG saves space

Built to Save

Save space: the system is compact and with no separate tanks

Save water: In areas with better water quality, override mode can be enabled to help users save water

Save salt: The system can calculate and design an economical and effective soft water treatment plan based on the water source and the treated water volume

WCS45KG is long lasting system

Built to Last

Corrosion-resistant & Rust-free automatic control valve

Quality ion exchange resin

Corrosion-resistant & Rust-free fiberglass Tank

High capacity of up to 45,000 grains or 94 grains per gallon

WCS45KG improves the water quality

Built to Improve

Upon purchasing the system, you are investing in a healthier life and peace of mind.

Soft water improves the condition of your hair and skin and makes them softer and more smooth

Soft water also improves the cleaning of your laundry and dishes, making them stainless and spotless

Soft water prevents pipes and household appliances from scale and clogging, helping to extend their lifespan and releasing your burden on plumbing repair and replacements

please read before purchase

Please Note:

This water softener DOES NOT have a built-in sediment filter. So if there is a lot of sediment in your water, we recommend installing a pre-filter such as iSpring WSP50ARB sediment filter before this system.

Iron would negatively impact the effectiveness of water softener and we highly recommend installing an iron filter before this system if there's iron in your water. Please check out iSpring WCFM500K whole house iron filter (3ppm < iron level < 12 ppm) or iSpring WGB32BM / WGB22BM / WGB21BM whole house iron filter (iron level < 3 ppm).

This water softener uses salt to soften water. If you want a saltless water descaler, please check out iSpring WDS150K, iSpring ED2000, or iSpring WSP50-SL water descalers.

You SHOULD NOT drink the water from any softener. If a water softener is necessary because the water is hard, we recommend adding a reverse osmosis drinking water system (like iSpring RCC7AK RO system) in the kitchen to remove the sodium that the softener leaves behind.

  • Availability In Stock
  • Model WCS45KG
  • Manufacturer iSpring
  • Product Dimensions 13.8"L x 22.5"W x 52.7"H
  • Product Weight 120.0 LB

Manuals

WCS45KG Manual.pdf Download

iSpring vs Other Brands

Feature
NSF/ANSI 58 Certification
Yes (full system certified)
Often partial or none
Verified performance & safety
Filtration Stages
Clear 3/4/5/7 stage options
Usually 4-5 stages
More complete options
Alkaline Remineralization
Available (RCC7AK/RCC7AK-UV)
Rare or expensive add-on
Better taste & pH balance
See-through 1st Stage Housing
Yes, smart flow sensor
Unavailable in most systems
Easy visual inspection
Daily Production
75 GPD (reliable output)
Often lower or overstated
Reliable daily production
Replacement Filters
Widely available & affordable
Hard or harder to find
Lower long-term cost
Installation
DIY friendly, no plumber needed
Can be more complex
Faster & easier set-up
Support & Warranty
Responsive support + solid warranty
Varies widely
Better post-purchase experience
Value for Money
High performance at competitive price
Higher price for similar specs
Better cost-effectiveness

Reviews

  • 5 stars: 11 (79%)
  • 4 stars: 2 (14%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 1 (7%)
J
Jorge Morejon

Have ispring RO and softener. Both great then had issue with softener. Spoke to Nick in tech support. He was extremely helpful and got me a replacement easily! Thanks again

R
Rocky

Bought this to replace a Rayne softener. This unit was easy to install. Just had to re-route a bit of the supply piping. The installation manual's operation section could use some work, but the YouTube video helps. The folks at iSpring actually answer the phone and are very helpful. If you have any questions, Nick has the answers. I particularly liked getting their free extended warranty, which he helped with.

A
Anonymous

Nick at ISpring was extremely helpful in getting our water system working properly. It is now working and seems to be perfect. Thank you Nick and ISpring for taking care of the problem and making our water great!

A
Anonymous
Perfect replacement for our old whole house softener system. Easy installation and good customer...

Very easy installation because we already had a 1 flexible line. There are only two lines in and out so installation was a breeze. There is a very concise video for the first time use that made set up and very programming easy. I had directly contacted sales to extend the warranty and Nick was extremely professional and quick to respond. So that was easy too. So far the system seems to work perfectly without much stress. Setting up an account on the website was easy too thanks to Nick.

A
Anonymous
Unbelievable Customer Service

I purchased the iSpring whole house water softener. My second purchase from iSpring. I have their RO water system and because of the customer service I received when I had some questions about that system I decided to spend a little extra and purchase this system instead of the big box store brand. Luckily I did as I had a catastophic failure with the contractor who installed the unit. The unit was installed at our weekend house so I was not there to supervise. Anyhow when I return a few weeks later the system alarm is going off. I then remove the top to discover the back wash was going straight back int the system and soaking all of the electronics - everything was corroded from the salt water. I called iSpring and spoke to Nick about the situation hoping for a discount or some type of help. He had me send pictures of the problem and said he would see what he could do. The next morning he asked where should he send the replacement unit. I asked how much and he said No Charge. I couldnt beleive it. I am so glad I spent the money to purchase from this company! I want to acknowledge and thank Nick for going beyond any expectation I had. 100% I ould recomened this company based on the interaction I have had with their support team. Oh and the products work wonderful also.

A
Anonymous
1st one not so good

I purchased the softener from Lowes after installation it was not softening at all. I called iSpring I talked to Nick. He gave some suggestions to make it work. After about 15 or so E mails it still wasn't working right. So he recommended a new unit which I'm very happy to get it after spending months trying to get it to work.Nick was a great help. Thanks for all your help Nick.

A
Anonymous
Elite Technical Support for a High-Capacity System

I recently installed the iSpring WCS45KG and had a few technical questions regarding the initial setup and hardness calibration. The customer service was exceptional. I worked with Sean who demonstrated deep product knowledge and moved through the troubleshooting steps with urgency and precision. He didn't just read from a script; he understood the specific constraints of my installation and provided immediate actionable solutions.The device itself is built to last��the fiberglass tank is solid and the control valve is intuitive making the regeneration process effortless. If you value your time and want a system backed by a team that actually answers the phone and knows their hardware this is the one to get.

A
Anonymous
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I have had the WCS45KG since July 2025 and am thoroughly pleased. The plumber I had install it did not have any problem. Almost immediately I could see the improvement in my water quality with no or little loss of pressure. The only reason I did not give a 5 rating is that the unit had an electrical problem and had to be replaced. Shawn took my call quickly diagnosed the problem and a new softener was delivered within a week.

A
Anonymous
Highly Recommend

I bought this water softener spring of 2025 and initially could not determine why my water was not soft. I worked with Sean who was extremely helpful in resolving an installation error. The unit has been working perfectly for months. His prompt response to my inquiry and repeated efforts to problem solve the issue was much appreciated! Rare customer service these days.

A
Anonymous
Missing part and customer service

I bought a device two months ago and I move and I lost another part as soon when I called the customer service and the gentleman he helped me out his name sege great help and the great customer service. Thank you so much again.

A
Anonymous
works great

The water softener works great reducing the hardness from 630 to about 100 which is acceptable.

A
Anonymous
It just works

After I installed my iSpring water softener I noticed a marked change in my water quality. I have the four stage filter so I have more than just the softener. One of the nice features is that it doesn��t use very much salt a bag per month-ish. I��ve owned it for over a year now without any issues.

A
Anonymous
null

I purchased the WCS45KG because of a previous positive customer service experience with a 2 stage filter. I bought it from Home Depot and it's solid. Easy to install followed the pretty simple directions and it was done. I did have a question about the softness so I called Ispring and spoke with Sean he guided me through a few settings and told me what to change. Sean is very knowledgeable and I highly recommend buying from a company like Ispring. They actually answer the phone and assist immediately when needed.

A
Anonymous
null

I installed the Isprings whole house water softener and have been so disappointed with the results. I haven't seen a change in my waters softness or iron levels. It also uses a lot of salt. I would keep searching if you're looking for a water softener

Support

How to install