WhisperFlo® VST Variable Speed Pool Pump
Product Overview
Delivers 2.60 Total Horsepower with direct drop-in plumbing compatibility to cut power consumption without altering existing WhisperFlo pipe layouts.
Engineered by Pentair as a direct replacement for legacy single-speed WhisperFlo models, the WhisperFlo VST brings high-output circulation to modern efficiency standards. Rated at 2.60 THP with a Weighted Energy Factor (WEF) of 8.4, it delivers significantly more hydraulic power than the entry-level SuperFlo VST to comfortably support larger pools, spas, and water features. Its totally enclosed fan-cooled (TEFC) motor and integrated digital interface ensure quiet operation, weather protection, and precise flow programming.
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Benefits & What Makes It Different
2.60 Total Horsepower (THP)
Supplies stronger hydraulic flow than the SuperFlo VST, making it suitable for larger residential pools, attached spas, and high-demand suction cleaners.
Direct Drop-In Dimensions
Shares the exact suction and discharge port geometry of single-speed Pentair WhisperFlo pumps, eliminating the need to cut and re-plumb existing PVC pads.
ENERGY STAR Certified (WEF 8.4)
Variable speed engineering reduces electrical consumption by matching motor RPM directly to filtration and heating demands rather than running wide open.
TEFC Motor Construction
The totally enclosed fan-cooled motor housing prevents dust, moisture, and debris from reaching internal electrical windings for extended operating life.
Compatibility
- Direct drop-in replacement for Pentair WhisperFlo single-speed and two-speed pumps
- Compatible with both 115V and 208-230V single-phase electrical supplies
- Operates standalone via onboard programmable keypad or integrates into external automated controllers
When To Use This
Pro Tip
Because this unit drops directly into existing WhisperFlo plumbing, you do not need to cut your existing suction manifold; however, always replace the lid O-ring and inspect the pump strainer basket during install to prevent air leaks at lower RPMs.
Common Questions & Instructions
Can the Pentair WhisperFlo VST replace an older WhisperFlo pump without replumbing?
Yes. The WhisperFlo VST shares the exact casing dimensions, port height, and suction-to-discharge spacing of standard Pentair WhisperFlo pumps, enabling true drop-in replacement without modifying the PVC lines.
How does the WhisperFlo VST differ from the Pentair SuperFlo VST?
The WhisperFlo VST is built on Pentair's heavy-duty commercial wet end platform and delivers 2.60 THP, whereas the SuperFlo VST is rated at 2.20 THP. This higher capacity handles higher head pressure, larger gallon pools, and secondary water features with ease.
What electrical voltage does the WhisperFlo VST require?
The WhisperFlo VST features dual-voltage capability, operating automatically on either 115V or 208-230V electrical service without requiring internal wiring switches.
Delivered today to your DFW neighborhood
Order this item by 2 PM Central on a weekday, and we'll have it on your driveway by evening. Same-day delivery is FREE to every ZIP in our DFW coverage area — no minimum — or it's free with our weekly service plan.
