Pentair 011533 WhisperFlo VST Pump | Variable Speed

OEM Pentair WhisperFlo VST Pool Pump 011533 | Variable Speed. Pentair’s WhisperFlo VST Variable Speed Pool Pump (Model 011533) is engineered for maximum efficiency and versatility. Featuring a 2.6 THP Energy Star® rated motor and WEF of 8.4, it delivers substantial energy savings and powerful water circulation. This model is a seamless upgrade for older WhisperFlo units, with 2-inch NPT ports, self-priming capability, and broad voltage compatibility.

The quiet TEFC motor and digital control panel allow users to program three speed settings plus an override. With RS-485 communication, the pump integrates smoothly into automated pool systems, offering smart performance and reduced energy consumption.

Specification

Highlights

• High Efficiency: 2.6 THP with Energy Star® certification and WEF of 8.4
  
• TEFC Motor: Quiet and weather-resistant design for long-term use
  
• User-Friendly Interface: Programmable display with 3 speeds + override
  
• Automation Compatible: RS-485 port supports smart pool systems
  
• Universal Fit: Drop-in replacement for WhisperFlo pumps; fits 115–230V

Pentair WhisperFlo VST Variable Speed Pool Pump | Model 011533

The OEM Pentair WhisperFlo VST (011533) is a high-efficiency, Energy Star® certified variable speed pump built for quiet operation, durability, and energy savings. Perfect for in-ground pools requiring up to 2.0 HP, it delivers 2.6 Total Horsepower (THP), integrates with automation systems, and installs easily as a direct replacement for older WhisperFlo models.

High-Efficiency Performance

2.6 Total Horsepower (THP)

Delivers strong, reliable flow for pool filtration, water features, and high-head applications.

8.4 Weighted Energy Factor (WEF)

Rated for maximum efficiency, helping lower energy costs year-round.

Energy Star® Certified

Saves up to 90% in energy consumption compared to single- or two-speed pumps.

Quiet, Long-Lasting Motor

Totally Enclosed Fan-Cooled (TEFC) Motor

Reduces noise and protects against heat and harsh environmental conditions.

Durable Mechanical Seal

Engineered for long-term performance in chemical-rich environments.

Smart, Programmable Control

Onboard Digital Interface

Includes 24-hour clock, three programmable speed settings, and manual override.

RS-485 Automation Port

Supports seamless integration with pool automation and smart home systems.

Easy Retrofit & Versatile Power

Direct Replacement

Compatible with previous Pentair WhisperFlo models with no re-plumbing required.

Dual Voltage Operation

Runs on 115V or 230V, 50/60Hz without the need for special wiring.

Technical Specifications

Key Product Details

• Model: 011533

• WEF: 8.4

• THP: 2.6

• HHP: 1.64

• Service Factor: 1.0

• Max Input Voltage: 115/208–230V

• Frequency: 50/60Hz

• Full Load Amps: 13.9 / 11.1–10.1 A

• Port Size: 2" x 2" NPT

• Weight: 45 lbs

• Certifications: UL, NSF/ANSI 50

• Availability: Dealer only