Waterworks Water Softener Bypass Valve 7129871

Basic Information

• Part Name: Bypass Valve
• Manufacturer: Ecodyne
• Category: Water Softener
• Primary Function: Redirects water flow to bypass the softener or filter system while maintaining household water supply

Installation & Compatibility

• Compatible Models: Fits select Kenmore, Whirlpool, GE, and Waterworks water softeners and water filters. Confirm compatibility with your model before ordering.
• Kenmore: 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, 625388280, 625348260, 625348261
• Whirlpool: WHES20, WHES30
• GE: GNSF18Z01, GNSF23Z01, GNSF35Z01, GNSF35Z02, GNSF35Z03, GXSF18G01, GXSF23Z01, GXSF27B00, GXSF27B01, GXSF27E01, GXSF30H01, GXSF31E01, GXSF35E01, GXSF39B00, GXSF39B01, GXSF39E01, GXSF39E04, GXSF40H01, GXSS17Z01, GXSS20B00, GXSS20H01, PNSF31Z01, PNSF35B00, PNSF39Z01
• Waterworks: WS1000
• Installation Difficulty: Medium; requires disconnecting the inlet and outlet lines from the softener or filter
• Tools Required: Adjustable wrench, pliers, towel, work gloves

Additional Information

This water softener bypass valve (part number 7129871) allows you to stop the flow of water into the water softener or water filter while maintaining water service to your homes faucets.

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

Replacing a worn or leaking bypass valve ensures proper control of water flow during maintenance or service, preventing leaks and water interruptions.

Shut off the water supply and relieve pressure in the system before beginning the repair. Wear work gloves to protect your hands.

7129871 replaces part numbers 34371, WS15X10012, 3437, 3437299, and 42-3437.