Whole-house softener · Premier Water Systems

Premier Water Systems Fleck 5600 WHWS1054 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
Requires a drain line and power.
Right buyer
Up to 4 people on 15 gpg water.
Grain capacity (maker)
48,000 grains
Resin volume
1.5 cu ft
Service flow (maker)
12 GPM
Control valve
fleck 5600
Crosslink
10
Pipe connection
3/4" male
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What it does for your water

The Premier Water Systems Fleck 5600 WHWS1054 48,000-Grain Water Softener is a whole-house softener rated at 48,000 grains on a fleck 5600 control valve. Its listing gives a service flow of 12 GPM.

Run at an efficient salt setting, its 1.5 cu ft of resin 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 fleck 5600 head is one of the most widely serviced valves; seal kits, pistons, boards and meters that name it are in the valve parts lookup.

The listing also gives connections 3/4" male; model WHWS1054; resin 1.5 cu ft; valve fleck 5600; flow 12 GPM.

The listing gives dimensions of 10 x 10 x 48 inches.

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
  • 12 GPM service flow
  • fleck 5600 valve
  • 1.5 cu ft of resin

Loses

  • Requires a drain line and power
  • 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 numberWHWS1054Retailer
Dimensions (seller)10 x 10 x 48 inchesRetailer
Grain capacity (maker)48,000 grainsRetailer
Service flow (maker)12 GPMRetailer
Resin volume1.5 cu ftRetailer
Pipe connection3/4" maleRetailer
Control valvefleck 5600Retailer
Crosslink10Retailer

Units to weigh against it

Other water softeners in the catalog

Every water softeners on one grid · All Premier Water Systems units we cover

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 Premier Water Systems Fleck 5600 WHWS1054 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.