Pentair Whisperflo Energy Effic 3/4 HP Full Rate Pump - WFE-3


Part # 011512

By Pentair Pool Products

  5 Average  



Part # 011512

Warranty 1 Year (See Pentair Warranty Card)

Manufacturer Code WFE-3

Alternate Part #'s PEN011512, PUR-10-367

Product Description

Inyo Recommended Pumps

WHISPERFLO incorporates innovative hydraulic engineering to move water more efficiently and quietly than competitive pumps. Under typical operating conditions, WHISPERFLO 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.

Commonly Replaced Parts (Click on Link to view/purchase):

 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

3/4 HP
Port Size:
2 in.
Service Factor:

?     Asked on 5/27/2021by wolfgang

My Pool pump (WFE-3 Model 011512, 0.75 HP.) seems to be sucking air. I want to purchase the Seal Kit, but am not sure on the exact model year of my pump. The label on the pump states SN: 05 01 -8986 AP (see pic). Which model year is this and which Seal Kit should I purchase?


A  Answered on 5/27/2021 by InyoPools Product Specialist Patrick P.

Based on your photos you will require this Pentair Whisperflo Tune Up Kit

  • Commented on 5/27/2021 by Product Owner

    Do you know which model year my pump is? 05 01, that that mean May 2001?

    • Commented on 5/27/2021 by InyoPools Product Specialist Patrick P.

      Hi Unfortunately we do not have the key to decipher the Pentair Serial #'s. I would suggest reaching out to Pentair directly at

?     Asked on 10/30/2019by Jacki

Do I need to purchase any other parts/fittings to install this pump to replace my old Whisperflo pump?

A  Answered on 10/30/2019 by InyoPools Product Specialist Lennox H.

Hi, Jacki. You will need Pump Unions - 11201-0154.

?     Asked on 1/4/2019by david milgram

I have a <2 yr old (purchased from Inyo, March 2017) Pentair Whisperflo 2 spd 3/4 HP Pump. It is making very loud noise when running. I have turned it off out of fear that it will self-destruct catastrophically. I am surprised that it is failing this soon. What do you recommend?

A  Answered on 1/4/2019 by InyoPools Product Specialist Kevin G.

Hello, that sound you are hearing is the bearings of your motor going bad. This can be caused by water getting into the motor or the pump running dry. To fix this issue, your best option will be to replace the motor and seals. If you could please send me a photo of your motor label, I can recommend the correct motor for you. 

?     Asked on 9/3/2017by Rick

Have a 18000 gallon pool, 3/4hp whisperflow 1 speed, average run is 42 feet and filter is a Pentair Clean and Clear 320 (3 filters inside, says will handle 50gpm) plumbing 1 1/2 inch piping. 8 year old system, the pool now pump shuts down when hot. I have a Rheem 6310 heat pump and it starts and shuts down with low flow code. System seems to be pumping at about 12gpm. I am wondering since I have to replace the pump if I should go with a bigger flow pump. Thanks for any help.

A  Answered on 9/15/2017 by InyoPools Product Specialist Lennox H.

Hi, Rick. Based on the info provided, you should be getting more than 12gpm. The Rheem 6310 heat pump requires a min flow rate of 15-60 gpm. You can go with a bigger pump as long as it does not exceed the flow rate of your pieces of equipment. 

?     Asked on 5/31/2017by john

I have a 1hp superpump and 1 1/2 plumbing. would the WFE-3 be a good replacement or should I go with the 1hp superflo ?

A  Answered on 6/1/2017 by InyoPools Product Specialist Lennox H.

Hi, John. The Super Pump - SP2607X10Superflo - 340038 or Prime - PL2601 are good replacements.

?     Asked on 5/22/2017by Inyo Visitor

Is this a direct replacement for my Hydropump 590 H 3/4 HP or is the Superflow pump the correct one?

A  Answered on 5/26/2017 by InyoPools Product Specialist Lennox H.

Hi. I was not able to find any performance data on the Hydropump 590 model to confirm if either the Whipserflo or the Superflo Pump are direct replacements. In order to find out which pump will be better, follow the steps in our How To Size a Pool Pump guide.

?     Asked on 12/15/2016by Dave

We are hearing a buzzing sound when we turn on the power, but there is no suction. We have a Whisperflo 3/4 purchased 10/2009. (Linda Laski) Serial number 032625309203. Does that sound like a pump problem?

A  Answered on 12/15/2016 by InyoPools Product Specialist Adam Y.

Good morning Dave, Sounds like the start capacitor is bad. Is there a hump on top of the motor? If so, that is where the capacitor is located and it is an easy replacement. If not then it is located in the back of motor.

?     Asked on 10/23/2016by James

How many amps does a 3/4 hp pentair whisper flow pump draw?

A  Answered on 10/24/2016 by InyoPools Product Specialist Stacey M.

Hello James, depending on what you are set at for volts115/208-230V you are going to be at 11.2/6.0-5.6 for AMPS.

?     Asked on 7/24/2016by milie

I have a pentair WF-24, 1 hp with a SF of 1.25. which Pentair energy effic. pump would I replace it with. I'm confused that on the data it states a SF of 1.67 yet you say its total hp is just under 1hp

A  Answered on 7/26/2016 by InyoPools Product Specialist Lennox H.

Hi Millie, The Pentair WFE-3 or WFE-24 are your energy efficient options.

?     Asked on 6/17/2016by Inyo Visitor


A  Answered on 6/18/2016 by InyoPools Product Specialist Patrick P.

In most applications I would say a 1 HP or a 1.5 HP pump would be suited for a 25,000 gallon pool. However there are quite a few factors that come into play like your filter size, pump size and feet of head. We put together a good video here on How to Size a Pool Pump which you may find helpful. I personally like the PureLine Pure Water 1.5 HP Pump.

?     Asked on 12/29/2015by Rob Strickland

Will I need to purchase O-rings and seals in addition to the pump or does that all come with it?

A  Answered on 12/29/2015 by InyoPools Product Specialist Joe S.

Hello Rob, Pentair Whisperflo Energy Effic 3/4 HP Full Rate Pump PART#011512 is the complete unit. You will not need any additional seals or gaskets. Just the PVC you would purchase from a hardware store. If you wanted to add unions you would purchase part number 11201-0154.

?     Asked on 7/18/2015by edith

How many GPM ( Gallons Per Minute ) is this pump ?

A  Answered on 7/18/2015 by InyoPools Product Specialist Brian M.

Depending on the head resistance, that number will vary. But at minimal head, the max would be 98GPM .

?     Asked on 6/25/2015by Art Bullman

I have an existing WF-23. Should I replace it with the same unit or should I use the WFE-3? Are all of the connections compatible?

A  Answered on 6/25/2015 by InyoPools Product Specialist Hector F.

By going to the WF-3 you would be getting a full rate model which is technicaly a total horse power of just under 1. Connections are the same but you need to make sure that the filter will be compatible via flow rate to handle the extra water pressure.

?     Asked on 5/13/2015by Inyo Visitor

How long can we expect the motor to last? Installed 10/2013 making very loud noises (Not whispering) Poolman says to replace it!

A  Answered on 5/13/2015 by InyoPools Product Specialist Patrick P.

Normally a pool motor lasts in the 7-10 year range, if it is running very loud then this means the bearings are going bad and it would be a good idea to replace the motor.

?     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 7/2/2009by Guest

Do the WFE-3 and WFE-24 have the same pump curve?

A  Answered on 7/2/2009 by InyoPools Product Specialist Patrick P.

The WFE-24 and WFE-3 have the exact same pump curve. You may read more about full rate and up rate pumps here > and you may view or purchase either of these pumps here >


Review Summary

 (Average 5  out of 5 stars)
2 Rating
5 star:
4 star:
3 star:
2 star:
1 star:

The Most Helpful Review

The Most Recent Reviews