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Your cart is empty.Keep soft, cleaner water flowing in your home with the easy-to-install Kenmore 40,000 grain water softener. This water softener system is NSF International Certified to reduce hard water minerals, barium and radium in your home’s water. Built with intuitive IntelliSoft® Technology that adjusts to your water needs, saving you money in salt, water and energy bills. This system will effectively reduce stains, scale buildup, and clear water iron. You’ll notice positive changes with soft water, such as softer hair and skin, cleaner clothing, linens and dishes, and better appliance performance and plumbing. This whole home water softener system is easy to install and program. Ideal for households of 1-5 persons. Discover the total difference a Kenmore system can make throughout your home.The Kenmore 420 Model has the same height (floor to inlet-outlet) and same 3/4” valve size as these older Kenmore models: 625.340700, 625.340752, 625.342802, 625.348320, 625.348321, 625.348420, 625.348470, 625.348490, 625.348471, 625.348491, 625.348541, 625.348551, 625.348570 ,625.348590, 625.348571, 625.348591, 625.348751, 625.3488003, 625.348812, 625.348832, 625.383000, 625.383001, 625.383060, 625.383500, 625.383560, 625.386200, 625.388100, 625.388150, 625.388160, 625.388170, 625.388180, 625.388200, 625.388250 ,625.388251, 625.388260, 625.388270, 625.388280, 625.3483400, 625.3483500, 625.3484400, 625.3484500, 625.3485400, 625.3485500, 625.348732.The following older Kenmore models have the same 3/4" valve size, but the height (floor to inlet-outlet) is shorter. Additional plumbing will be required to replace with the Kenmore 350 (41.5" height to inlet-outlet): 625.340400 (34"), 625.340500 (36-3/4"), 625.348460 (22.5"), 625.348512 (36.5"), 625.388110 (36.5"). NOTE: Due to variances in production and assembly, the Kenmore water softener valve height may vary by up to 1/2" from an existing water treatment system, including existing Kenmore models. This potential change in valve height will not affect system performance. Product color may vary from photo color.
Customer
Reviewed in the United States on March 3, 2025
This product ease installation. Use, Functionality
Carl G
Reviewed in the United States on February 1, 2025
I read that the average lifespan of a water softener is about 10 years, if it is well-maintained. The Kenmore 420 is an exact replacement of a 30-year-old Kenmore Super Capacity Genius model 625-2485500. The plumbing connected perfectly and it took me about 30 minutes to remove the old one and hook up the new one. The interesting thing is that I paid $698 for the Genius model in 1995. Hopefully, this newer model will last for 30 years.
Ben A.
Reviewed in the United States on January 16, 2025
The Kenmore 350 Water Softener is a reliable and efficient choice for managing hard water issues. It’s easy to install, straightforward to use, and does a fantastic job of reducing mineral buildup in appliances and plumbing. The system regenerates efficiently, saving both salt and water, and the 32,000-grain capacity is perfect for small to medium households. Overall, a great investment for better water quality and extended appliance life!
ripplemaker
Reviewed in the United States on August 30, 2024
This water softener was a replacement for an older model that had stopped working. The original one was the same make and model and lasted a good ten years. I just know the new one will outlive me! It uses salt pellets and not much is required. It softens the water effectively without using excessive amounts sof salt. It's pretty much feed it some salt and then forget it until the little amber light indicates it wants to be fed again.
Ken H.
Reviewed in the United States on May 10, 2024
This was an easy replacement for my 2008 series 300. The bypass valve is slightly different on the new one so I continue to use the old one to minimize re-piping. The new recharging system uses a longer brine fill and brine empty cycle than before but so far so good. Many of the wear parts are the same as the older unit - O-rings, valve disc, valve housing so repairs, if needed, will be as before. The display board has been updated to provide for more options however does not appear to be improved to protect against saltwater fume corrosion -- one of the reasons I needed to replace my older unit. The rectangular exterior shape has a slightly different footprint and lid opening is a bit smaller for adding salt but not a big deal. I have been using a similar design Kenmore water softener for over 40 years and will expect this new design to provide a similar service life and good quality softened water.
Don Sherwood
Reviewed in the United States on December 25, 2024
As advertised, direct replacement for our old Model 350. Easy installation and good performance so far (two months)
MIKE
Reviewed in the United States on November 10, 2024
This was an easy swap over. Easy set up and seems to work well
Mary N.
Reviewed in the United States on October 22, 2024
NO WARRANTY - Kenmore representatives will argue any failure of the unit and will not assist with fixing it. My unit is 1 month old and I had to pay someone to come troubleshoot it and the rep at Kenmore told me the well and water softener company I contacted was not qualified because of his assessment. They will say that about ANY company you call and use. It's a sham, scan and Kenmore should be out of business for treating customers the way they do. Poor quality is what Kenmore is peddling for once a name brand that was top in the appliance field. Don't waste your time and money an anything Kenmore.
Nam Trinh
Reviewed in Canada on March 25, 2023
Bought to replace the 18 years Kenmore. Good product.
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