By Pentair Pool Products



Part # 011775

Warranty 1 Year (See Pentair Warranty Card)

Manufacturer Code WF-30

Alternate Part #'s PEN011775

Product Description

Inyo Recommended Pumps

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
Click here for more Pentair Pumps

Product Specifications

2 1/2 HP
Port Size:
2 in.
Service Factor:

?     Asked on 2/16/2012by 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 InyoPools Product Specialist 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.

?     Asked on 4/21/2015by Al

Do you sell just the motor? -I just need a replacement motor. Thanks, Al

A  Answered on 4/21/2015 by InyoPools Product Specialist Robert M.

Hello Al - The replacement motor is model B840.

?     Asked on 10/18/2017by Chairmer

Hello, can you tell me if I can use this pump in a pool of 120000 litters? Or can you tell me what it will be better?

A  Answered on 10/18/2017 by InyoPools Product Specialist Lennox H.

Hi, Chairmer. Unfortunately, not with the limited information provided. You can refer to our How to Size a Pool Pump for Your In-Ground Pool guide for the info we will need. 

?     Asked on 12/30/2022by Larry

How can I purchase this pump?

A  Answered on 12/30/2022 by InyoPools Product Specialist Hector F.

Hello Larry, this particular pool pump model can only be purchased through your local certified pool contractors(CPC) per the manufacturers newer online policy. 


Review Summary

 (Average 3  out of 5 stars)
1 Ratings
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