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The Kenmore 420 40,000 grain water softener is NSF International certified to reduce hard water minerals, barium and radium, all while allowing your home’s water pressure to remain at a high level. This softener effectively reduces corrosive residue, buildup and clear water iron, extending the lifetime of your water-using appliances. You’ll also notice positive changes with soft water, such as softer hair and skin, cleaner clothing, linens and dishes, and better appliance performance and plumbing.
This system is easy to install and program, and the advanced display allows you to monitor salt levels and water flow, as well as your average daily water usage. The IntelliSoft® Technology adjusts to your water needs, saving you money on salt, water and energy costs. Discover how this Kenmore system can make a difference in your home.
The Kenmore 420 is a direct replacement for many older Kenmore Water Softeners. See list below for model compatibility.
Product color may vary from photo color.
The Kenmore 40,000 grain water softener is equipped with technology that protects your home from the effects of hard water. Discover some of the features that make it a great choice for homeowners.
Great for households of 1-5 people, this 40,000 grain system removes up to 120 gpg (grains per gallon) of water hardness and up to 10 ppm (parts per million) of clear water iron.
This technology monitors and adjusts to your water needs, so you never run out of soft water. It also means you’ll save money on water, salt and energy expenses.
Easy Setup & Maintenance
This water softener is simple to install and maintain—no need to call the plumber for installation assistance. To get started, you will need to purchase the necessary connectors for your plumbing, inspect the included installation kit and locate a nearby 110V electrical outlet and a drain.
Water Usage Statistics
Get a better understanding of your system’s efficiency. By pressing the “Water Use” button, you can see exactly how much water is currently flowing through your softener and your average daily use.
The Kenmore 420 has a 1” ultra-flow valve that sustains maximum water pressure throughout your home, including your showers and faucets.
A built-in screen within the softener provides an additional layer of protection against large particles. This helps protect your water-using appliances and plumbing.
For your convenience, this light provides visibility inside of the tank in low-lit areas. The light will automatically turn on when you open the tank’s lid.
No matter if you have a municipal water supply or a private well, this system will reduce hard water minerals, clear water iron, radium and barium.
NSF International Certified
This Kenmore water softener is third-party tested and NSF International certified to reduce damaging hard water minerals, barium and radium in your home’s water.
Built to be a reliable addition to your home, this system is backed by a 1-year warranty for parts and labor, a 3-year warranty for electronics and a 10-year warranty for tanks.
Softener, bypass valve, installation kit and a written installation guide. For a complete list of parts included in the installation kit, review the owner’s manual.