Water Softeners under $600

Salt-based, 32000 Grain capacity

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Aquasure Harmony Series 32,000 Grains Whole House Water Softener with High Performance Automatic Digital Metered

$523.29as of 11/04/2026 11:42 PST - Details

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Pros

+Whole-house system treats water throughout the home

+32,000 grain capacity

+Automatic digital metered control head

Cons

−Salt-based softening requires regular salt refills

Compared with the 6 Water Softeners on this page

+Metered regeneration: only 2 of 7 here have one

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Salt-based, 40000 Grain capacity

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Aquasure Harmony Series 40,000 Grains Whole House Water Softener with High Performance Automatic Digital Metered

$579.99as of 11/04/2026 11:42 PST - Details

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Pros

+Whole-house system treats water throughout the home

+40,000 grain capacity

+Automatic digital metered control head

Cons

−Salt-based softening requires regular salt refills

Compared with the 6 Water Softeners on this page

+Metered regeneration: only 2 of 7 here have one

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Salt-free

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Tier1 900,000 Gallon Salt-Free Whole House TAC Scale Prevention System | Upflow TAC Design | Prevents Mineral Buildup |

$554.59as of 11/04/2026 05:40 PST - Details

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Pros

+Salt-free design needs no salt refills

+Whole house system treats water at every tap

+Rated for 900,000 gallons of water treatment

+Uses TAC scale prevention to limit mineral buildup

Cons

−Salt-free units do not soften water by removing hardness minerals

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Salt-based, 45000 Grain capacity

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iSpring WCSTB45KG 45,000 Grains Whole House Water Softener with Brine Tank | Whole House Hard Water Scale Remover,

$529.40as of 11/03/2026 23:38 PST - Details

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Pros

+Whole house coverage treats water at every tap

+45,000 grain capacity

+Includes a separate brine tank

Cons

−Salt-based, so it requires regular salt refills

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Salt-based, 34000 Grain capacity

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Aquasure Harmony Lite All-in-One 34,000 Grains Whole House Water Softener with Pleated Sediment Pre-Filter System |

$549.99as of 11/04/2026 11:42 PST - Details

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Pros

+Whole-house system treats water throughout the home

+34,000 grain capacity

+Includes pleated sediment pre-filter

Cons

−Salt-based softening requires regular salt refills

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Salt-based

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EcoPure EPS120 Whole House Water Softener for Medium Households | 3-4 People, 2-3 Bathrooms, Use Up to 40% Less Salt,

$589.00as of 11/03/2026 22:47 PST - Details

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