Under sink water softeners are designed to remove hardness minerals from your water supply, providing you with softer water for your home. These softeners typically connect to your cold water line and work by exchanging sodium ions for calcium and magnesium ions in your water.
This process helps to prevent hard water build-up in your pipes and appliances and can also improve the taste and quality of your water.
20 Best Under Sink Water Softener
Product Image | Product Name | Features | Price |
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iSpring RCC7 5-Stage Under Sink Reverse Osmosis Drinking Water Filtration System |
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iSpring RCC7P Under Sink 5-Stage Reverse Osmosis Drinking Water Filtration System |
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iSpring RCC7AK 6-Stage Under Sink Reverse Osmosis Drinking Water Filter System |
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Filtrete Maximum Under Sink Water Filtration System |
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Frizzlife Under Sink Water Filter System-High Capacity Direct Connect |
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Whirlpool WHESFC Pro Series – Softener/Whole Home Filter Hybrid, Gray |
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Water Filter and Salt Free Water Softener (1-3 Bathrooms) CSF1 |
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Express Water Deionization Reverse Osmosis Filtration System 6 Stage RO di Filter … |
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Waterboss 36400 Grain Water Softener |
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Aquasana Whole House Salt-Free Water Conditioner |
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ScaleBlaster Water Softener/Conditioner/Filtration System | SB-75 |
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Culligan Undersink Water Filtration System |
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Brondell H2o+ Coral Three-Stage Undercounter Water Filtration System |
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Express Water Deionization Reverse Osmosis Filtration System 6 Stage RO di Water … |
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Waterboss Water Softener 22,000 Grain |
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GE GXMH31H 31,100 Grain Water Softener & Filter in One |
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- Filters out 99 percent of more than 1000 different pollutants
- Solid, durable construction made from the highest quality materials
- I Spring Maximum Performance Line
- Unmatched Speed, Efficiency, And Drain Ratio Among Residential Ro Filtration Systems
- Pre Equipped Booster Pump Operates Near Silent
- This system is certified against NSF 58 for TDS reduction and the use of FDA food-grade material in all parts
- Clear see-through 1st stage – convenient visual inspection and monitoring of the filter condition, keeps you informed
- This system reduces 99% lead, 99% microbial cysts, 97% chlorine taste and odor, plus 0.5 microns of sand, sediment, rust, and soil QUICK INSTALLATION
- PP, carbon, Lead removal filter cartridge, brass water hose, brass converter fitting
- Item Dimensions LxWxH
- 5 x 5 x 13.5 inches
- Save Money With A 2-in-1 System: Remove hard water minerals and harmful contaminants for families of 1-to-5 with one single-tank system instead of buy.
- Deionized Water Is Great For Appliances And Makes Contaminant Free Drinks And Food A Healthy Life Made Easy.
- How Water Should Taste! Remove Up To 99.99% Of Major Contaminants Don’T Waste Money On Installing.
- 36,400 Grain Cap ((170 Lbs)
- Max Water Hardness: 90 Grains Per Gallon
- 14-3-4Wx18-3-4Dx30-3-4H
- Hard water levels up to 19 gpg or (325 ppm)
- Economic model – indoor installations only, for homes under 4,000 sqft
- Works on Copper, PVC, CPVC and PEX pipe
- Carbon Block Filtration Coral UC100 offers a powerful carbon block filter that is WQA certfied for high performance
- Twist & Seal Filter Replacement Changing filters is a breeze with Coral’s twist & seal filter change system
- Deionized Water Is Great For Appliances And Makes Contaminant Free Drinks And Food A Healthy Life Made Easy.
- How Water Should Taste! Remove Up To 99.99% Of Major Contaminants Don’T Waste Money On Installing.
- Offers whole-house large capacity softening
- Built-in, self-cleaning, whole-house filter
- No cartridges to change
- Ensures there is always plenty of softened water available by “learning” a family’s water-use patterns GE exclusive custom select blending valve
1. iSpring RCC7 5-Stage Under Sink Reverse Osmosis Drinking Water Filtration System
- Filters out 99 percent of more than 1000 different pollutants
- Solid, durable construction made from the highest quality materials
- All parts constructed using only FDA-rated food-grade materials
- Assemble is required and the product includes all assembly hardware
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Amazon.com | |
eBay | |
Walmart | |
Home Depot |
Product Details
Specifications
Details | |
Recommended Use | All water types |
Filtration Method | Multi-method |
Max Feed Water Temperature (Fahrenheit) | 100 |
Reduces Turbidity | Yes |
Diameter (Inches) | 2.5 |
Reviews From Real Customers
2. iSpring RCC7P Under Sink 5-Stage Reverse Osmosis Drinking Water Filtration System
- I Spring Maximum Performance Line
- Unmatched Speed, Efficiency, And Drain Ratio Among Residential Ro Filtration Systems
- Pre Equipped Booster Pump Operates Near Silent
- Filters 1,000+ Water Pollutants Including Common Adversaries Chlorine And Fluoride
- Thin Film Composite Semipermeable Ro Membrane Filters Down To 0.0001 Micron (A Human Hair Is Approximately 50 Microns)
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Amazon.com | |
eBay | |
Walmart – iSpring Water Systems, LLC | |
Home Depot |
Product Details
Specifications
Details | |
Min Feed Water Temperature (Fahrenheit) | 40 |
Filter Life (Months) | 6 |
Number of Filters | 5 |
Reduces Micro-Organisms | No |
Weight (lbs.) | 36 |
Reviews From Real Customers
3. iSpring RCC7AK 6-Stage Under Sink Reverse Osmosis Drinking Water Filter System
- This system is certified against NSF 58 for TDS reduction and the use of FDA food-grade material in all parts
- Clear see-through 1st stage – convenient visual inspection and monitoring of the filter condition, keeps you informed
- Elegant EU style designer faucet – heavy duty faucet with ceramic disk and fine brushed nickel finish
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Amazon.com | |
eBay | |
Walmart – iSpring Water Systems, LLC | |
Home Depot |
Product Details
Specifications
Details | |
Width (Inches) | 5.3 |
Household Size | 4+ people |
Recommended Use | All water types |
Height (Inches) | 18 |
Package Quantity | 1 |
Diameter (Inches) | 2.5 |
Number of Filters | 6 |
Reduces Turbidity | Yes |
Reduces Iron | Yes |
Filtration Method | Multi-method |
Reduces Bacteria | No |
Total Contaminants Reduced | 1000 |
Total Dissolved Solids (Percentage) | 95 |
Stage | 6-stage |
Reduces Pharmaceuticals | No |
Reduces Mercury | Yes |
Reduces Chloramine | Yes |
Max Feed Water Temperature (Fahrenheit) | 100 |
Reduces PFOA/PFOS | Yes |
Weight (lbs.) | 28.5 |
Length (Inches) | 15.5 |
Reduces Chlorine Taste and Odor | Yes |
Lowe’s Exclusive | No |
Reduces Chemicals | Yes |
Reduces Lead | Yes |
Reduces Micro-Organisms | No |
Min Feed Water Temperature (Fahrenheit) | 40 |
Filter Life (Months) | 6 |
Reduces Sediment | Yes |
Reduces Cysts | Yes |
Flow Rate (GPM) | 0.5 |
Reviews From Real Customers
4. Filtrete Maximum Under Sink Water Filtration System
- This system reduces 99% lead, 99% microbial cysts, 97% chlorine taste and odor, plus 0.5 microns of sand, sediment, rust, and soil QUICK INSTALLATION
- This system installs in less than 30 minutes USES EXISTING FAUCET
- Filter water right at the sink without having to install an entirely separate faucet PROVIDES HIGH FLOW RATE
- This system maintains a high flow rate of 1.5 gallons per minute SIX MONTH FILTER LIFE
- Use each filters for up to six months
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Amazon.com | |
eBay | |
Walmart | |
Home Depot |
Product Details
Specifications
Details | |
Manufacturer Part Number | 3USMAXS01 |
Product Model | 3US-MAX-S01 |
Product Name | Under Sink Filtration Kit |
Packaged Quantity | 1 Each |
Product Type | Water Filter |
Reviews From Real Customers
5. Frizzlife Under Sink Water Filter System-High Capacity Direct Connect
- PP, carbon, Lead removal filter cartridge, brass water hose, brass converter fitting
- Item Dimensions LxWxH
- 5 x 5 x 13.5 inches
- Lower Temperature Rating
- 38 Degrees Fahrenheit
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Amazon.com – Seller | |
eBay | |
Walmart | |
Frizzlife |
Product Details
Specifications
Details | |
Item traits | 4.8OZ |
Filtration Method | Carbon/Charcoal |
Item Height | 10 in |
Item Depth | 10 in |
Item Width | 5 in |
Reviews From Real Customers
6. Whirlpool WHESFC Pro Series – Softener/Whole Home Filter Hybrid, Gray
- Save Money With A 2-in-1 System: Remove hard water minerals and harmful contaminants for families of 1-to-5 with one single-tank system instead of buy.
- Superior Hardness Removal: This hybrid water softener/filter has a 31, 000 grain capacity, an above average hardness removal rating of 120 grains per.
- Water Contaminant Reduction: This whole home filtration system reduces sediment, chlorine taste, and odor from the water used throughout your entire h.
- Efficiently Use Salt: The WHESFC is a smart water softener, meaning it uses demand-initiated regeneration technology to produce soft water as your hom.
- Designed, engineered and assembled in the USA. Questions Call the Whirlpool helpline.
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Sold By | Price |
Amazon.com | |
EcoPureHome | |
BrookPad |
Product Details
Specifications
Details | |
Attribute Name | Attribute Value |
Product Dimensions | 19 x 18 x 48 inches |
Country of Origin | USA |
Style | Filter |
Item Package Quantity | 1 |
Reviews From Real Customers
7. Waterdrop Tankless 5-in-1 Under-Sink Reverse Osmosis Water Filtration System with 600 gpd Membrane, Black
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Amazon | |
Home Depot |
Product Details
Specifications
Details | |
House Hold Size | 5-6 people |
Number of filters included | 1 |
Ease of Install | Drilling Required |
Filtration | Carbon Block |
Number of Stages | 5 Stage |
Reviews From Real Customers
8. Water Filter and Salt Free Water Softener (1-3 Bathrooms) CSF1
- 1-3 Bathrooms
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Amazon | |
SpringWell Water Filtration Systems |
Product Details
Reviews From Real Customers
9. Express Water Deionization Reverse Osmosis Filtration System 6 Stage RO di Filter …
- Deionized Water Is Great For Appliances And Makes Contaminant Free Drinks And Food A Healthy Life Made Easy.
- How Water Should Taste! Remove Up To 99.99% Of Major Contaminants Don’T Waste Money On Installing.
- Our Easy Quick Setup Design Means You Can Install And Understand Help Has Arrived.
- Support From Experts Who Can Answer Any Of Your Questions About Your Home’S Water Simply Pure.
- Removes Fluoride, Lead, Chlorine, Chromium, Calcium, Nitrates, Bacteria, Viruses, MoreMake The Purest Drinking Water With Your Own Home System.
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Sold By | Price |
Amazon | |
eBay – expresswater | |
Walmart – Express Water |
Product Details
Specifications
Details | |
Finish | Deluxe Brushed Nickel |
Reviews From Real Customers
10. FilterSmart Whole House Water Filter and Salt Free Softener Combo 1-4 Bath 12 GPM
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Amazon | |
FilterSmart |
Product Details
Reviews From Real Customers
11. Waterboss 36400 Grain Water Softener
- 36,400 Grain Cap ((170 Lbs)
- Max Water Hardness: 90 Grains Per Gallon
- 14-3-4Wx18-3-4Dx30-3-4H
- Reduces Iron
- Auto Regeneration Based On Water Used
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Amazon | |
eBay | |
Walmart | |
Ace Hardware |
Product Details
Specifications
Details | |
Maximum Hardness Removal | 90 grains/gal |
Installation Kit Included | Yes |
Programmable | Yes |
Salt Storage Capacity | 160 lb |
Alarm | No |
Reviews From Real Customers
12. Aquasana Whole House Salt-Free Water Conditioner
- 6 Year Whole House
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Amazon | |
eBay | |
Walmart – Online Supply Center | |
Home Depot |
Product Details
Specifications
Details | |
Dimensions | 9.50 × 9.50 × 48.00 in |
Application Type | Water Treatment |
House Hold Size | 5-6 people |
Includes | Installation kit |
Indoor/Outdoor | Indoor, Outdoor |
Reviews From Real Customers
13. ScaleBlaster Water Softener/Conditioner/Filtration System | SB-75
- Hard water levels up to 19 gpg or (325 ppm)
- Economic model – indoor installations only, for homes under 4,000 sqft
- Works on Copper, PVC, CPVC and PEX pipe
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Sold By | Price |
Amazon | |
Lowe’s | |
The BuildClub |
Product Details
Specifications
Details | |
Lowe’s Exclusive | No |
Works with Amazon Alexa | No |
App Compatibility | No |
Bluetooth Compatibility | No |
Max Clear Water Iron (Parts Per Million) | 0 |
Reviews From Real Customers
14. Culligan Undersink Water Filtration System
- 0.5 / 0.5 / 500 Gal, 12 3/8 in
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eBay | |
Walmart | |
McGuckin Hardware |
Product Details
Specifications
Details | |
Manufacturer Part Number | US-EZ-3 |
Product Model | US-EZ-3 |
Product Name | Undersink Water Filtration System |
Packaged Quantity | 1 |
Product Type | Water Filter |
Reviews From Real Customers
15. Brondell H2o+ Coral Three-Stage Undercounter Water Filtration System
- Carbon Block Filtration Coral UC100 offers a powerful carbon block filter that is WQA certfied for high performance
- Twist & Seal Filter Replacement Changing filters is a breeze with Coral’s twist & seal filter change system
- Convenient Filter Change Reminder The integrated LED indicator in the premium chrome faucet lets you know when it is time to change the filters
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Walmart | |
Home Depot |
Product Details
Specifications
Details | |
Weight | 6.24 lb |
Reviews From Real Customers
16. Express Water Deionization Reverse Osmosis Filtration System 6 Stage RO di Water …
- Deionized Water Is Great For Appliances And Makes Contaminant Free Drinks And Food A Healthy Life Made Easy.
- How Water Should Taste! Remove Up To 99.99% Of Major Contaminants Don’T Waste Money On Installing.
- Our Easy Quick Setup Design Means You Can Install And Understand Help Has Arrived.
- Support From Experts Who Can Answer Any Of Your Questions About Your Home’S Water Simply Pure.
- Removes Fluoride, Lead, Chlorine, Chromium, Calcium, Nitrates, Bacteria, Viruses, MoreMake The Purest Drinking Water With Your Own Home System.
Check Latest Price
Sold By | Price |
Amazon | |
eBay – expresswater |
Product Details
17. Waterboss Water Softener 22,000 Grain
- Offers whole-house large capacity softening
- Built-in, self-cleaning, whole-house filter
- No cartridges to change
- Reduces clear water iron up to 10 ppm
- Regenerates automatically
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Sold By | Price |
Amazon | |
eBay – max_warehouse | |
Walmart | |
Ace Hardware |
Product Details
Specifications
Details | |
Width | 14.75 in. |
Product Type | Water Softener |
Salt Storage Capacity | 120 lb |
Regeneration Time | 18 min |
Depth | 18.75 in. |
Reviews From Real Customers
18. Waterdrop – 800GPD Tankless Reverse Osmosis Water Filter with UV Light – White
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Amazon | |
Best Buy | |
Home Depot |
Product Details
Specifications
Details | |
House Hold Size | 8+ people |
Number of filters included | 3 |
Ease of Install | Drilling Required |
Filtration | Ultraviolet Light |
Number of Stages | 3 Stage |
Reviews From Real Customers
19. GE GXMH31H 31,100 Grain Water Softener & Filter in One
- Ensures there is always plenty of softened water available by “learning” a family’s water-use patterns GE exclusive custom select blending valve
- Allows you to select how soft you want your water GE exclusive salt saver
- Helps reduce salt consumption Advanced filtration
- Reduces chlorine taste and odor with built-in water filtration Grain capacity
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eBay – ephesushomegoods | |
GE Appliances – Official Site | |
Warners’ Stellian | |
ACWholesalers.com |
Product Details
Specifications
Details | |
Dimensions | 25.60 × 15.70 × 50.00 in |
Application Type | Water Treatment |
House Hold Size | 3-4 people |
Includes | Installation kit |
Indoor/Outdoor | Indoor |
Reviews From Real Customers
20. A.O. Smith 35000-Grain Water Softener
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Lowe’s |
Product Details
Specifications
Details | |
App Compatibility | No |
Works with SmartThings | No |
Voice Controlled | No |
Works with Amazon Alexa | No |
Works with Apple HomeKit | No |
Reviews From Real Customers
Conclusion
In conclusion, an under sink water softener is a great way to improve the quality of your water. It is easy to install and requires little maintenance. Additionally, it will save you money on your water bill and extend the life of your appliances.