Bypass valve · Soft Water Supply

Soft Water Supply 7129871 Bypass Valve

Bypass valve

Updated October 2026

Quick verdict

A sound bypass valve for repairs and upkeep.

Strength
Bypass valve.
Trade-off
Check the part number or size first.
Right buyer
Repairs and upkeep.
Pipe connection
1" male
Product weight
10.2 ounces
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What it does for your water

The Soft Water Supply 7129871 Bypass Valve is a bypass valve.

A bypass lets you take the softener out of service and keep water flowing to the house during repairs, salt checks or a regeneration problem.

From the listing: connections 1" male; model 7129871.

The listing gives a shipping weight of 10.2 ounces.

Is it the right unit for your house?

Choose it when

  • Repairs and upkeep
  • Owners with the original part number

Pass on it when

  • Softeners it doesn't name

Where it wins and where it loses

Wins

  • Bypass valve

Loses

  • Check the part number or size first

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 number7129871Retailer
Product weight10.2 ouncesRetailer
Pipe connection1" maleRetailer

Units to weigh against it

Other brine tanks and softener parts in the catalog

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Final verdict

A sound bypass valve for repairs and upkeep.

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

What is the Soft Water Supply 7129871 Bypass Valve for?
The Soft Water Supply 7129871 Bypass Valve is a bypass valve.