Pentair 011533 WhisperFlo VST 2.6 THP variable speed pool pumpPentair WhisperFlo VST 2.6 THP Variable Speed Pool Pump, 115/208-230V, TradeGrade, 011533 In stock$1,76699
Pentair 011533 WhisperFlo VST 2.6 THP variable speed pool pump
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Pentair WhisperFlo VST 2.6 THP Variable Speed Pool Pump, 115/208-230V, TradeGrade, 011533

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Quick overview

  • Variable speed Runs at the speed the job actually needs, which is where the energy saving on a pool pump comes from.
  • More power than SuperFlo VST Pentair positions the WhisperFlo VST above the SuperFlo VST in output.
  • Drop-in for WhisperFlo Built as a direct replacement for an existing Pentair WhisperFlo, so the plumbing and pad layout carry over.
  • TEFC motor The totally enclosed fan-cooled motor is sealed against the dirt, damp and insects that shorten open motor life.
  • User set speeds Programming lets you pick and store the speeds that suit your pool rather than accepting one fixed flow rate.
  • TradeGrade line Part of the Pentair TradeGrade range, part number 011533.
Full description and specifications ↓

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Product details

The Pentair WhisperFlo VST, part number 011533, is a 2.6 total horsepower variable speed pool pump wired for 115 or 208-230 V. It is sold in the Pentair TradeGrade line.

Why variable speed

The power a pump draws climbs far faster than the flow it produces. That relationship is what makes a variable speed pump cheaper to run: instead of one fixed high speed for a short window, it turns slowly for longer and moves the same volume of water using a fraction of the electricity. Filtering, heating, cleaning and spa jets all want different flow rates, and the programming lets you set and store a speed for each rather than compromising on one.

Built to last on a pad

The motor is totally enclosed and fan-cooled. A TEFC motor keeps out the dust, damp and insects that get into an open drip proof motor and end up shorting a winding, which is the usual way a pool motor dies before its bearings do.

Replacing a WhisperFlo

This pump is designed as a drop-in for an existing Pentair WhisperFlo, so an older single speed WhisperFlo can be upgraded without replumbing the pad. Pentair positions the WhisperFlo VST above the SuperFlo VST for output, so it suits larger pools and longer plumbing runs where the smaller pump would be working at the top of its range.

From Pool School

What Size Pool Pump Do I Need?Enter the gallons, the turnover and the suction pipe. Get the flow and what the pipe carries. Read How Long Should I Run My Pool Pump?Hours from the turnover, why a variable speed pump runs longer and slower, and each manufacturer's schedule. Read How to Prime a Pool PumpFrom the breaker to a full pot, each manufacturer's time limit, and what to check when it won't catch prime. Read

Parts for this pump

Pentair's parts lists give it the pump end parts of the WF-8. Its motor can differ.

Pentair WhisperFlo Pump parts diagram28 numbered parts, with the ones for the WF-8 already picked.Open the diagram

Bought most for this pump

Specifications
Brand Pentair
Manufacturer part number 011533
UPC 788379888800
Type Variable speed pool pump
Model WhisperFlo VST
Total horsepower 2.6 THP
Voltage 115/208-230V
Motor Totally enclosed fan-cooled, TEFC
Speed control Variable speed, user programmable
Line TradeGrade
Replaces Drop-in replacement for existing Pentair WhisperFlo pumps
Shipping weight 45 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

Will it replace my existing WhisperFlo?
It is built as a drop-in replacement for existing Pentair WhisperFlo pumps, so the footprint and plumbing connections are intended to carry over.
What voltage does it take?
115 or 208-230 V.
How is it different from the SuperFlo VST?
Pentair rates the WhisperFlo VST as the more powerful of the two.
Why does variable speed save money?
Pump power rises steeply with speed. Running longer at a low speed moves the same water for a fraction of the energy a single speed pump uses at full RPM.
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