Best Water Softener Systems Updated August 2025

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Best Water Softener Systems
2025 Buyer's GuideUpdated August 2025
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9.8

1

9.8

Kind Water System E-3000UV Whole House Water Filter & Softener with UV
Type: Salt-free
Flow Rate: 15 gallons per minute
Hardness Removal: 75 grains per gallon
Bypass Valve: No
Home Size: Up to 7 people
Compare
Picked by 163 people today!
Picked by 163 people today!

9.8

1
Kind Water System E-3000UV Whole House Water Filter & Softener with UV
Type: Salt-free
Flow Rate: 15 gallons per minute
Hardness Removal: 75 grains per gallon
Bypass Valve: No
Home Size: Up to 7 people

9.4

2

9.4

Kind Water E-4000 Water Softener
Type: Salt
Flow Rate: 12 gallons per minute
Hardness Removal: 50 grains per gallon
Bypass Valve: No
Home Size: Up to 4 people
Compare
Compare

9.4

2
Kind Water E-4000 Water Softener
Type: Salt
Flow Rate: 12 gallons per minute
Hardness Removal: 50 grains per gallon
Bypass Valve: No
Home Size: Up to 4 people
Compare

9.3

3

9.3

Kind Water Systems Whole House Salt-Free Water Softener and Filter Combo - High Performing Coconut Shell Carbon Block Filtratio...
Type: Salt-free
Flow Rate: 15 gallons per minute
Hardness Removal: 75 grains per gallon
Bypass Valve: No
Home Size: Up to 7 people
Compare
Compare

9.3

3
Kind Water Systems Whole House Salt-Free Water Softener and Filter Combo - High Performing Coconut Shell Carbon Block Filtratio...
Type: Salt-free
Flow Rate: 15 gallons per minute
Hardness Removal: 75 grains per gallon
Bypass Valve: No
Home Size: Up to 7 people

8.9

4

8.9

Aquasure Harmony Series 48,000 Grains Whole House Water Softener w/High Efficiency Digital Metered Control Head (48,000 Grains)...
Type: Salt
Flow Rate: 12 gallons per minute
Hardness Removal: 48,000 grains
Bypass Valve: Yes
Home Size: Up to 5 people
Compare
Compare

8.9

4
Aquasure Harmony Series 48,000 Grains Whole House Water Softener w/High Efficiency Digital Metered Control Head (48,000 Grains)...
Type: Salt
Flow Rate: 12 gallons per minute
Hardness Removal: 48,000 grains
Bypass Valve: Yes
Home Size: Up to 5 people

8.6

5

8.6

OTG4-DBLSOFT-Portable 16,000 Grain RV Water Softener (NOT made in China, assembled by U.S. Workers in Indiana)
Type: Salt
Flow Rate: 3 gallons per minute
Hardness Removal: 16,000 grains
Bypass Valve: No
Home Size: Up to 2 people
Compare
Compare

8.6

5
OTG4-DBLSOFT-Portable 16,000 Grain RV Water Softener (NOT made in China, assembled by U.S. Workers in Indiana)
Type: Salt
Flow Rate: 3 gallons per minute
Hardness Removal: 16,000 grains
Bypass Valve: No
Home Size: Up to 2 people

8.5

6

8.5

AquaHomeGroup Shower Head Filter for Hard Water – 20-Stage + 5 Replacement Cartridges – Removes Chlorine, Fluoride, and Other C...
Type: Salt-free
Flow Rate: Not indicated
Hardness Removal: Not indicated
Bypass Valve: No
Home Size: N/A
Compare
Compare

8.5

6
AquaHomeGroup Shower Head Filter for Hard Water – 20-Stage + 5 Replacement Cartridges – Removes Chlorine, Fluoride, and Other C...
Type: Salt-free
Flow Rate: Not indicated
Hardness Removal: Not indicated
Bypass Valve: No
Home Size: N/A

8.2

7

8.2

Aquasana SimplySoft® 40,000 Grain Water Softener - Whole House Hard Water Reduction - Base Tank & Cabinet System WH-SF40-BASE
Type: Salt
Flow Rate: 15.5 gallons per minute
Hardness Removal: 200 grains per gallon
Bypass Valve: Yes
Home Size: Up to 5 people
Compare
Compare

8.2

7
Aquasana SimplySoft® 40,000 Grain Water Softener - Whole House Hard Water Reduction - Base Tank & Cabinet System WH-SF40-BASE
Type: Salt
Flow Rate: 15.5 gallons per minute
Hardness Removal: 200 grains per gallon
Bypass Valve: Yes
Home Size: Up to 5 people
Compare

8.0

8

8.0

Waterdrop AP431 AP430SS Whole House Scale Inhibitor Filter, Heater Softener System, Prevent Scale Build Up On Hot Water Heaters...
Type: Salt-free
Flow Rate: 10 gallons per minute
Hardness Removal: Unknown
Bypass Valve: No
Home Size: Up to 5 people

8.0

8
Waterdrop AP431 AP430SS Whole House Scale Inhibitor Filter, Heater Softener System, Prevent Scale Build Up On Hot Water Heaters...
Type: Salt-free
Flow Rate: 10 gallons per minute
Hardness Removal: Unknown
Bypass Valve: No
Home Size: Up to 5 people

7.9

9

7.9

Waterdrop 10UA Under Sink Water Filter System, Reduces PFAS, PFOA/PFOS, Lead, Chlorine, Bad Taste & Odor, Under Counter Water F...
Ease of installation
Taste
Functionality
Water quality
Water filter
Value for money

7.9

9
Waterdrop 10UA Under Sink Water Filter System, Reduces PFAS, PFOA/PFOS, Lead, Chlorine, Bad Taste & Odor, Under Counter Water F...
Ease of installation
Taste
Functionality
Water quality
Water filter
Value for money

7.7

10

7.7

APEC Water Systems ROES-50 Essence Series Top Tier 5-Stage WQA Certified Ultra Safe Reverse Osmosis Drinking Water Filter Syste...
Type: Salt-free
Flow Rate: 50 gallons per day
Hardness Removal: Not indicated
Bypass Valve: Yes
Home Size: Not indicated

7.7

10
APEC Water Systems ROES-50 Essence Series Top Tier 5-Stage WQA Certified Ultra Safe Reverse Osmosis Drinking Water Filter Syste...
Type: Salt-free
Flow Rate: 50 gallons per day
Hardness Removal: Not indicated
Bypass Valve: Yes
Home Size: Not indicated

Our Top Choice

9.8

1

9.8

Kind Water System E-3000UV Whole House Water Filter & Softener with UV
Type: Salt-free
Flow Rate: 15 gallons per minute
Hardness Removal: 75 grains per gallon
Bypass Valve: No
Home Size: Up to 7 people
Compare
Picked by 163 people today!
Picked by 163 people today!

9.8

1
Kind Water System E-3000UV Whole House Water Filter & Softener with UV
Type: Salt-free
Flow Rate: 15 gallons per minute
Hardness Removal: 75 grains per gallon
Bypass Valve: No
Home Size: Up to 7 people

Compare Features

Hardness Removal
Best Water Softener System
1. Kind Water System E-3000UV Whole House Water Filter & Softener with UV
KIND Preview KIND Preview
KIND
at Kind Water Systems
2. Kind Water E-4000 Water Softener
KIND Preview KIND Preview
KIND
at Kind Water Systems
3. Kind Water System E-3000 Whole House Water Filter & Softener
KIND Preview KIND Preview
KIND
at Amazon
4. Aquasure Harmony Series Water Softener
AQUASURE Preview AQUASURE Preview
AQUASURE
at Amazon
5. On The Go Portable RV Water Softener
ON THE GO Preview ON THE GO Preview
ON THE GO
at Amazon
Popular
6. AquaHomeGroup Shower Head Filter
AQUAHOMEGROUP Preview AQUAHOMEGROUP Preview
AQUAHOMEGROUP
at Amazon
7. Aquasana SimplySoft Water Softener
AQUASANA Preview AQUASANA Preview
AQUASANA
at Amazon
8. Waterdrop AP431 Whole House Water System
WATERDROP Preview WATERDROP Preview
WATERDROP
at Amazon
Best Value
9. Waterdrop 10UA Under Sink Water Filter System
WATERDROP Preview WATERDROP Preview
WATERDROP
at Amazon
10. Apec Water ROES-50 RO Water Filtration System
APEC WATER Preview APEC WATER Preview
APEC WATER
at Amazon
Deal
Save 42% Factory-Direct + 15% Off 55% Off Save 8% Save 5% + $8 Coupon Save 25% 15% Coupon
Deal Save 42% Factory-Direct + 15% Off 55% Off Save 8% Save 5% + $8 Coupon Save 25% 15% Coupon
Type
Salt-free Salt Salt-free Salt Salt Salt-free Salt Salt-free Salt-free
Type
Salt-free Salt Salt-free Salt Salt Salt-free Salt Salt-free Salt-free
Flow Rate
15 gallons per minute 12 gallons per minute 15 gallons per minute 12 gallons per minute 3 gallons per minute Not indicated 15.5 gallons per minute 10 gallons per minute 50 gallons per day
Flow Rate
15 gallons per minute 12 gallons per minute 15 gallons per minute 12 gallons per minute 3 gallons per minute Not indicated 15.5 gallons per minute 10 gallons per minute 50 gallons per day
Hardness Removal
75 grains per gallon 50 grains per gallon 75 grains per gallon 48,000 grains 16,000 grains Not indicated 200 grains per gallon Unknown Not indicated
Hardness Removal
75 grains per gallon 50 grains per gallon 75 grains per gallon 48,000 grains 16,000 grains Not indicated 200 grains per gallon Unknown Not indicated
Bypass Valve
No No No Yes No No Yes No Yes
Bypass Valve
No No No Yes No No Yes No Yes
Home Size
Up to 7 people Up to 4 people Up to 7 people Up to 5 people Up to 2 people N/A Up to 5 people Up to 5 people Not indicated
Home Size
Up to 7 people Up to 4 people Up to 7 people Up to 5 people Up to 2 people N/A Up to 5 people Up to 5 people Not indicated

Water Softener System Buyer's Guide



Navigating the many choices for every purchase can be challenging. Our team spends hours doing research on every product under the sun, and we summarize that information in clear, precise comparisons. Our top pick is based on the factors that are important to our readers, the most popular products in each category, and our data-driven analysis of all the options. We do our best to give you all the information you need to make the right purchase in one place.


Trusting Our Top Pick



60
Models
Evaluated

10
Topics
Considered

10
Hours of
Research

500
Purchases
Analyzed



Our recommendations are based on expert comparisons between available products in each category. We choose the topics that we think matter most to our readers, and provide concise, clear comparisons of the features that matter. Our rankings change day-to-day based on new data and shopping trends, so we can identify top-performing products and tailor our recommendations to exactly what our readers are looking for.