CONFIRM THE PART FITS

Waterworks Water Softener Bypass Valve (replaces 3437, 3437299, 42-3437) 7129871

Part #7129871

Online Only Price
$52.18
10% OFF Phone Price : $58.18
In Stock
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60-day return policy
This part fits

Part Information

Bypass valve 7129871 is an original equipment manufacturer (OEM) part that fits some water softeners in these series: Kenmore 625; Whirlpool WHES; GE GNSF, GXFS, GXSS and PNSF; and Waterworks WS1000. It also fits Kenmore water filter models 625348260 and 625348261.

Bypass valve 7129871 allows you to stop the flow of water into the water softener or water filter while still allowing water to flow to your home's faucets.

Replaces original water softener bypass valve part numbers 34371, WS15X10012, 3437, 3437299 and 42-3437.

Fits Kenmore water softener models 625340050, 625340090, 625348321, 625348350, 625348420, 625348440, 625348450, 625348470, 625348471, 625348490, 625348491, 625348540, 625348550, 625348570, 625348571, 625348590, 625348591, 625348730, 625348731, 625348732, 625348830, 625348831, 625348832, 625388100, 625388110, 625388150, 625388160, 625388170, 625388180, 625388200, 625388250, 625388260, 625388270 and 625388280.

Also fits GE water softener models GNSF18Z01, GNSF23Z01, GNSF35Z01, GNSF35Z02, GNSF35Z03, GXSF18G01, GXSF23Z01, GXSF27B00, GXSF27B01, GXSF27E01, GXSF30H01, GXSF31E01, GXSF35E01, GXSF39B00, GXSF39B01, GXSF39E01, GXSF39E04, GXSF40H01, GXSS17Z01, GXSS20B00, GXSS20H01, PNSF31Z01, PNSF35B00, and PNSF39Z01; Whirlpool water softener models WHES20 and WHES30; and Waterworks water softener model WS1000.

Reviews

Water softener manifold
September 09, 2022

The male threads on one side came slightly damaged and the braided water line would not twist on without cross threading.

Paul, CA

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Ease of Installation
Very Difficult
Duration of Installation
Less than 30 minutes

Yes, I would recommend this to a friend

Bypass Valve
March 21, 2021

Easy to install, took a couple of hours. Did learn from local hardware store to use plumbers grease to grease O rings. Products suggested in instructions will deteriorate O rings over time.

Joe76, Illinois

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Ease of Installation
Easy
Duration of Installation
1 - 2 hours

Yes, I would recommend this to a friend

Haven't Even Received it Yet
October 06, 2020

It's embarrassing to send and email asking for a review of a product when it hasn't even been delivered yet. I will update when it shows up.

Buffy, Indiana

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Ease of Installation
Moderate
Duration of Installation
30 minutes - 1 hour
Replace bypass for my water softener.
June 22, 2020

Wonderful response for parts and prompt service call to put it in. Thank you all.

Annette M, Undisclosed

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Ease of Installation
Very Easy
Duration of Installation
30 minutes - 1 hour
Did not fit the model listed
February 04, 2020

This part looks very similar but did not match the part that failed.

Kelly-OKC, Oklahoma City, OK

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Ease of Installation
Difficult
Duration of Installation
1 - 2 hours

Yes, I would recommend this to a friend

Installation of the Bypass Vave
September 21, 2019

It was very easy for me to install, only took about 20 to 25 minutes

Xrunner28, El Paso, TX

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Ease of Installation
Very Easy
Duration of Installation
30 minutes - 1 hour
Solved my problem | Easy to Install
August 29, 2019

It took me about 20 minutes to replace it. It is a direct fit.

J_Cruz, Orlando, FL

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Ease of Installation
Very Easy
Duration of Installation
Less than 30 minutes
Never received instructions
August 27, 2019

The bypass valve was not easy to install, and it has not been installed, because the promised instructions were never sent. Also missing were the retaining clips.

Another N, Missouri

Did you find this review helpful?

Ease of Installation
Very Difficult
Duration of Installation
More than 2 hours