Whisperflo Pump 3/4 HP - WF-23



Part # 011771

By Pentair Pool Products

  5 Average  



Part # 011771

Warranty 1 Year (See Pentair Warranty Card)

Manufacturer Code WF-23

Product Description

PureLine Prime Pump

The design that unleashed a new era in whisper-quiet operation

WHISPERFLO pump incorporates innovative hydraulic engineering to move water more efficiently and quietly than competitive pumps. Under typical operating conditions, WHISPERFLO pump offers the greatest water flow of any high performance pump—yet with the lowest electrical consumption. To circulate more water in less time and at the lowest cost, choose quiet, reliable, WHISPERFLO pump

WHISPERFLO pump is engineered to provide optimum performance in a complete range of installations, including pool/spa combinations. It operates suction-side, pressure-side, and in-floor cleaning systems, and is compatible with pressure or vacuum systems, sand filters, diatomaceous earth filters, and cartridge filters.

 Additional features include:

  • Lower operating costs. Less horsepower required to produce needed water flow, even when used in pool/spa combinations and when operating in-floor cleaning systems.
  • Extremely quiet operation documented in rigorous ETL tests.
  • Patented oversized strainer basket reduces cleaning frequency.
  • 1 Year Warranty
  • High-efficiency impeller maximizes water flow.
  • Life-extending diffuser wear-ring prevents uneven impeller wear.
  • Thicker seal plate withstands loss of prime conditions.
  • Available in standard and energy-efficient models.


  • Pipe Size = 2"

Pentair Whisperflo Dimensions

Pentair Whisperflo Pump Curve
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Product Specifications

3/4 HP
Pipe Size:
2 in.
Pump Model:
Service Factor:
41 lbs.

?     Asked on 7/7/2016 by mike

looking to replace whisperflo pool pump model WF-23C with a service factor 1.27. Is this the same as WF-23?

A     Answered on 7/12/2016 by Lennox H.

Hi Mike, The WF-23 is the exact replacement of your existing pump.

?     Asked on 3/12/2015 by Robert

I'm replacing a motor and pump on my pool trying to make sure this is the same unit. The part number on the motor is 7-186236-20 and the model number on the pump is WF23.

A     Answered on 3/13/2015 by Robert M.

Hello Robert - The Pentair Whisperflo 011771 is the correct replacement.

?     Asked on 2/16/2012 by Guest

I just finished replacing the shaft seal on my booster pump. As soon as I turned the pump on water was leaking from the shaft seal. Is it defective or am I doing something wrong?

A     Answered on 2/16/2012 by Patrick P.

Depending on the model, the installation of a booster pump shaft seal can be slightly different than a pool pump shaft seal. Some booster pump and pool pump shaft seals require that a silicone sealant be used on the outer areas of the metal seat of the shaft seal. The seal will need to be lightly hammered into the body of the pump. You can use a 1 inch PVC coupling or a piece of 1 1/4 inch PVC pipe and a rubber mallet. This procedure will apply to any pool pump or booster pump using a >PS-1000 style shaft seal.


Review Summary

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2 Rating
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The Most Helpful Review

1 of 2 people found the following review helpful:

 (5 out of 5 stars)  Quite and efficent pool pump

from Troy, MI ()

Pros: Quite and efficent

Cons: None

Very happy with pump, it is quite and moves much more water per hour then my old motor. Pump was delivered in 4 business days and price was excellent.

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The Most Recent Reviews

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 (5 out of 5 stars)  3/4 hp 3 Phase Motor

from Burlington, Iowa ()

Pros: Great fit

Cons: None

Bought as a replacement pump. Fit in perfectly to the existing plumbing.

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