Whole-house softener · SoftPro Water Systems

SoftPro Water Systems SoftPro 40k 40,000-Grain Water Softener

40,000-grain softener for up to 3 people at 15 gpg

Updated October 2026

Quick verdict

A practical whole-house softener for up to 3 people on 15 gpg water.

Strength
40,000-grain rating.
Trade-off
Service flow not stated.
Right buyer
Up to 3 people on 15 gpg water.
Grain capacity (maker)
40,000 grains
Dimensions (seller)
25"L x 15"W x 54"H
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What it does for your water

The SoftPro Water Systems SoftPro 40k 40,000-Grain Water Softener is a whole-house softener rated at 40,000 grains.

The rating assumes a heavy salt dose; at a salt-saving setting expect about 30,000 grains from its rating, enough for up to 3 people on 15 grains-per-gallon water regenerating weekly, or 2 on 25 grains per gallon. Size it to your own water.

Other listed details: features listed Self Cleaning; power Corded Electric; capacity stated as 1.25 cu ft; model 40k.

The listing gives dimensions of 25 in (L) x 15 in (W) x 54 in (H) and softpro elite high efficiency control valve, in the box.

Is it the right unit for your house?

Choose it when

  • Up to 3 people on 15 gpg water
  • Replacing an older softener

Pass on it when

  • More than 2 people on 25 gpg water
  • Iron above about 5 ppm without an iron filter

Where it wins and where it loses

Wins

  • 40,000-grain rating

Loses

  • Service flow not stated
  • 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 number40kRetailer
Features (seller)Self CleaningRetailer
Dimensions (seller)25"L x 15"W x 54"HRetailer
MethodIon ExchangeRetailer
Model nameSoftPro® Elite HE Water Softener for Well WaterRetailer
Grain capacity (maker)40,000 grainsRetailer

Units to weigh against it

Other water softeners in the catalog

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Final verdict

A practical whole-house softener for up to 3 people on 15 gpg water.

Where to buy

Our links open this exact model's product page. Prices and stock change; check what's included before you order.

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 SoftPro Water Systems SoftPro 40k 40,000-Grain Water Softener for?
At an efficient salt setting it delivers about 30,000 grains between regenerations: up to 3 on 15 gpg water, or 2 on 25 gpg, regenerating weekly. Iron adds load: each ppm counts as about 4 gpg.