By Pentair Pool Products



Part # 011514

Warranty 1 Year (See Pentair Warranty Card)

Manufacturer Code WFE-6

Alternate Part #'s PEN011528

Product Description


Pentair Whisperflo Energy Efficient 1.5 HP Full Rate Pump Replaced by 011528 1.5hp full rated TEFC Whisperflo pump


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.

 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

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

?     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 4/14/2012by Guest

Pumps my 1-1/2hp pool pump (Centurion CF11 N1 1A) went out when I fired it up (12 years old) Looking at maybe upgrading to energy efficient pump... considering Pentair or maybe Sta-Rite. Your Pentair WFE-26 (547.99) and WFE-6 (515.99) seem very similar but they are described as "up-rate" (26) and "full-rate" (6). What is difference and do you think these are similar to my current pump. (24700 gal pool; 230/115 pump we are wired for 230)Other or better suggestions? Last year I picked up a used sa

A  Answered on 4/14/2012 by InyoPools Product Specialist Patrick P.

Based on your pool size you need a Gallon per minute rating (GPM) of 52 GPM's to turn your pool over in an 8 hour time period, I show that your current Challenger pump outputs roughly 60 GPM's and we show that the part # you provided for your current pump is for a 1 HP. The sand filter you have has a GPM rating or 62 GPM's where the large Sta Rite filter has a GPM rating of 110 GPM's. The uprated WFE-26 pump outputs a GPM of 80 and the Full Rate WFE-6 pump has a GPM of 100. With all of this being said I would suggest going with the WFE-26 if you are going to stay with your current set up and swap out to the Sta Rite filter as the current sand filter can only handle 62 GPM's if you do intend on adding water features or see the need for the increased GPM's in the near future then I would go with the WFE-6 and swapping out to the S8M150. Lastly note that the amp draw is less on the WFE-26 so your operational cost would be roughly 20% less then that of the WFE-6. You may view or p

?     Asked on 1/23/2013by Guest

Can you help me find replacement seals for this Pentair Whisperflo pump?

A  Answered on 1/23/2013 by InyoPools Product Specialist Patrick P.

We have 2 different tune-up kits for the Pentair Whisperflo. The first one is for a standard pools and the second one is for saltwater pools. The saltwater tune-up kit comes with a heavy duty shaft seal and can be used on all Pentair Whisperflo pumps.

?     Asked on 11/5/2014by BUTCH

The pump that is on it now is a Marlow 1.5 J75EC RG what would be the cross over to a pentair whisperflo energy effcient?

A  Answered on 11/7/2014 by InyoPools Product Specialist Patrick P.

The Energy Efficient Whisperlo replacement for the Marlow 1.5 J75EC RG Argonaut Pump would be the Pentair Whisperflo WFE-26 (011518) Please note that the plumbing ports on the Whisperflo are in a slightly different location than the Marlow Argonaut so you may some minor re-plumbning.

?     Asked on 3/17/2015by PRJ

Is this pump available with a choice of a square flange (like the Pentair SuperFlo), in addition to the flange shown on the picture? If so, any advantage to either flange? Any price difference? Also, am I correct thinking that this pump with its 2" ports would allow better water flow than the SuperFlo (with smaller ports), used on a system having all 2" pipes ?

A  Answered on 3/17/2015 by InyoPools Product Specialist Hector F.

This pump model does have square flange motors and also is set up for 2 inch plumbing. There is no advantage in either square or round flange motors. 2 inch plumbing would allow better flow on higher horse power model pumps.


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 (Average 4.58  out of 5 stars)
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