Whole-house softener · Aquasure

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

64,000-grain softener for up to 6 people at 15 gpg

Updated October 2026

Quick verdict

A practical whole-house softener for up to 6 people on 15 gpg water.

Strength
64,000-grain rating.
Trade-off
Valve not named on the listing.
Right buyer
Up to 6 people on 15 gpg water.
Grain capacity (maker)
64,000 grains
Service flow (maker)
13.3 GPM
Material
Polyethylene
Dimensions (seller)
15"L x 15"W x 60"H
Product weight
149 lb
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What it does for your water

The Aquasure Harmony Series WS-EM-64 64,000-Grain Water Softener is a whole-house softener rated at 64,000 grains. Its listing gives a service flow of 13.3 GPM.

The rating assumes a heavy salt dose; at a salt-saving setting expect about 48,000 grains from its rating, enough for up to 6 people on 15 grains-per-gallon water regenerating weekly, or 3 on 25 grains per gallon. Size it to your own water.

Other listed details: features listed Programmable; mounting Freestanding; power Ac Adapter; capacity stated as 48000 gallons; model WS-EM-64; material Polyethylene.

The listing gives dimensions of 15 in (L) x 15 in (W) x 60 in (H) and a shipping weight of 149 lb.

Is it the right unit for your house?

Choose it when

  • Up to 6 people on 15 gpg water
  • Replacing an older softener

Pass on it when

  • More than 3 people on 25 gpg water
  • Iron above about 5 ppm without an iron filter

Where it wins and where it loses

Wins

  • 64,000-grain rating
  • 13.3 GPM service flow

Loses

  • Valve not named on the listing
  • Plumbing, drain and outlet needed
  • Softened water carries added sodium unless you use potassium chloride

Limits to know about

  • Figures are the maker's or seller's own; check fit and capacity against your water test and your equipment's manual.

Maker's figures

Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.

Model numberWS-EM-64Retailer
Features (seller)ProgrammableRetailer
Dimensions (seller)15"L x 15"W x 60"HRetailer
MaterialPolyethyleneRetailer
Mounting / installationFreestandingRetailer
MethodReverse OsmosisRetailer
Service flow (maker)13.3 GPMRetailer
Product weight149 lbRetailer
Model nameHarmonyRetailer
Grain capacity (maker)64,000 grainsRetailer

Units to weigh against it

Other water softeners in the catalog

Every water softeners on one grid · All Aquasure units we cover

Final verdict

A practical whole-house softener for up to 6 people on 15 gpg water.

Where to buy

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Prices change often; the button shows today's price.

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure

Questions buyers ask

How many people is the Aquasure Harmony Series WS-EM-64 64,000-Grain Water Softener for?
At an efficient salt setting it delivers about 48,000 grains between regenerations: up to 6 on 15 gpg water, or 3 on 25 gpg, regenerating weekly. Iron adds load: each ppm counts as about 4 gpg.