Product Overview

The Pentair WhisperFlo VST 2.6HP Variable Speed Pool Pump | 011533 is a high-performance variable speed pool pump designed for strong water circulation, dependable operation, and improved energy efficiency. Built on the trusted WhisperFlo platform, this pump is an excellent upgrade for existing WhisperFlo installations and is ideal for pool owners who want better performance, quieter operation, and lower operating costs compared to traditional single-speed pumps.

With 2.6 total horsepower, dual-voltage capability, a durable TEFC motor, and user-friendly onboard programming, the WhisperFlo VST delivers reliable performance for everyday filtration, heating, water features, and general pool circulation.

Ideal For

In-ground residential swimming pools

Replacing existing Pentair WhisperFlo pumps

Pool owners upgrading from single-speed or two-speed pumps

Systems that need more power than a SuperFlo VST

Filtration, circulation, heating, and light water feature applications

Key Features

Variable speed operation helps improve efficiency and reduce energy use

2.6 THP motor provides strong circulation performance

Dual-voltage design supports 115V or 208–230V installations

TEFC motor helps protect against heat, moisture, and pool environment conditions

User-friendly onboard controls allow pump speed programming

Designed as a superior drop-in replacement for existing WhisperFlo pumps

2" x 2" plumbing connections for common pool system setups

Energy Star certified performance

Built by Pentair for long-lasting pool pump reliability

Benefits

The WhisperFlo VST gives pool owners the flexibility to run the pump at lower speeds for daily filtration and higher speeds when extra flow is needed. This helps reduce wasted energy while still providing strong circulation when the pool system requires it.

Its drop-in WhisperFlo-style design makes it a strong replacement option for many existing Pentair WhisperFlo installations, helping reduce plumbing adjustments when replacing an older pump. The TEFC motor adds durability, while the onboard programming makes it easier to customize pump operation for the pool’s needs.

Specifications

Warranty & Compatibility

Professional installation is recommended for proper setup, electrical connection, and warranty compliance. Before ordering, confirm voltage, plumbing size, available installation space, automation compatibility, and whether this pump is replacing an existing WhisperFlo model.

Customer-Facing Q&A

Q: Is the Pentair 011533 a variable speed pump?
A: Yes. The Pentair WhisperFlo VST 011533 is a variable speed pool pump designed to improve efficiency and allow flexible speed programming.

Q: What voltage does this pump use?
A: This pump supports 115V or 208–230V power.

Q: Is this a good replacement for an older WhisperFlo pump?
A: Yes. The WhisperFlo VST is designed as a strong drop-in replacement option for many existing Pentair WhisperFlo pump installations.

Q: Is this pump stronger than the SuperFlo VST?
A: Yes. The WhisperFlo VST is generally used when more performance is needed than the SuperFlo VST.

Q: Should this pump be professionally installed?
A: Yes. Professional installation is recommended for safe electrical connection, proper setup, and warranty compliance.