High-Capacity Water Softeners for Large Households

Makes the list when

A whole-house or combination softener whose listing states a grain rating of 60,000 or more.

Ordered by

Grain rating (highest first)

Listed

The top 8 of 19 products in our catalog that meet the rule.

#1 · Grain rating: 96,000 grains

AFWFilters Fleck 2510SXT 96,000-Grain Water Softener and Filter System

Rated 96,000 grains, about 72,000 at an efficient salt setting (9 people at 15 gpg); on a Fleck 2510SXT head.

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#2 · Grain rating: 80,000 grains

PRO+AQUA PRO-S-80E 80,000-Grain Water Softener

Rated 80,000 grains, about 60,000 at an efficient salt setting (7 people at 15 gpg).

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#3 · Grain rating: 80,000 grains

AFWFilters Fleck 2510SXT 80,000-Grain Water Softener and Filter System

Rated 80,000 grains, about 60,000 at an efficient salt setting (7 people at 15 gpg); on a Fleck 2510SXT head.

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#4 · Grain rating: 80,000 grains

Fleck 5600 56M24R N1354H 80,000-Grain Water Softener

Rated 80,000 grains, about 60,000 at an efficient salt setting (7 people at 15 gpg); 12 GPM service flow; on a Fleck 5600 head.

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#5 · Grain rating: 72,000 grains

Aquasure Harmony Series AS-HS72D 72,000-Grain Water Softener

Rated 72,000 grains, about 54,000 at an efficient salt setting (6 people at 15 gpg).

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#6 · Grain rating: 72,000 grains

Aquasure Harmony Series AS-HS72SCZ 72,000-Grain Water Softener and Filter System

Rated 72,000 grains, about 54,000 at an efficient salt setting (6 people at 15 gpg).

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#7 · Grain rating: 70,000 grains

Aquasure Harmony Series AS-HS70FMZ 70,000-Grain Water Softener and Filter System

Rated 70,000 grains, about 52,500 at an efficient salt setting (6 people at 15 gpg).

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#8 · Grain rating: 64,000 grains

Aquasure Harmony Series WS-EM-64 64,000-Grain Water Softener

Rated 64,000 grains, about 48,000 at an efficient salt setting (6 people at 15 gpg); 13.3 GPM service flow.

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How to choose between them

At an efficient salt setting a softener delivers about three quarters of its rating, so a 64,000-grain unit gives about 48,000 grains between regenerations: enough for about six people on 15 grains-per-gallon water regenerating weekly, or three on 25 gpg.

Bigger isn't automatically better: a unit far beyond your load costs more and, on a timer, regenerates whether it needs to or not. Size it to your water first.

Rankings follow the rule and order stated above, using makers' published specifications and listed prices. How we research · Disclosure