Whole-house softener ยท Tier1

Tier1 WS-165-150 48,000-Grain Water Softener

48,000-grain softener for up to 4 people at 15 gpg

Updated October 2026

Quick verdict

A sensible whole-house softener for up to 4 people on 15 gpg water.

Strength
48,000-grain rating.
Trade-off
Valve not named on the listing.
Right buyer
Up to 4 people on 15 gpg water.
Grain capacity (maker)
48,000 grains
Service flow (maker)
18 GPM
Regeneration
metered regeneration
Household (maker)
4-5
Material
Plastic
Dimensions (seller)
10"L x 10"W x 59"H
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What it does for your water

The Tier1 WS-165-150 48,000-Grain Water Softener is a whole-house softener rated at 48,000 grains. Its listing gives a service flow of 18 GPM.

Run at an efficient salt setting, its rating gives about 36,000 grains per regeneration rather than the full rating: enough for up to 4 people on 15 grains-per-gallon water regenerating weekly, or 2 on 25 grains per gallon. Size it to your own water.

The listing also gives features listed Metered Regeneration, Automatic Bypass, No-Maintenance Valve; mounting Freestanding; sized by the maker for 4-5; regeneration metered regeneration; power Gravity-fed/Water Pressure; capacity stated as 1.5 cu ft.

The listing gives dimensions of 10 in (L) x 10 in (W) x 59 in (H) and a shipping weight of 120 lb.

Warranty, per the listing: 10-Year Limited.

Is it the right unit for your house?

Choose it when

  • Up to 4 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

  • 48,000-grain rating
  • 18 GPM service flow

Loses

  • Valve not named on the listing
  • Requires a drain line and power
  • Adds some sodium; potassium chloride is the alternative

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-165-150Retailer
Features (seller)Metered Regeneration, Automatic Bypass, No-Maintenance ValveRetailer
Dimensions (seller)10"L x 10"W x 59"HRetailer
MaterialPlasticRetailer
Mounting / installationFreestandingRetailer
MethodIon ExchangeRetailer
Product weight120 lbRetailer
Service flow (maker)18 GPMRetailer
Model nameTIER1_WS_165_150Retailer
Warranty10-Year LimitedRetailer
Grain capacity (maker)48,000 grainsRetailer
Regenerationmetered regenerationRetailer
Household (maker)4-5Retailer

Units to weigh against it

Other water softeners in the catalog

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Final verdict

A sensible whole-house softener for up to 4 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 Tier1 WS-165-150 48,000-Grain Water Softener for?
At an efficient salt setting it delivers about 36,000 grains between regenerations: up to 4 on 15 gpg water, or 2 on 25 gpg, regenerating weekly. Iron adds load: each ppm counts as about 4 gpg.