Pentair WhisperFlo VST 2.6 THP Variable Speed Pool Pump | EC-011533

Pentair WhisperFlo VST 2.6 THP Variable Speed Pool Pump | EC-011533

Pentair EC-011533 is the WhisperFlo VST variable speed pool pump. Its adjustable-speed operation lets you match daily circulation to the pool’s changing equipment needs.

What makes this configuration different

WhisperFlo VST combines the WhisperFlo hydraulic platform with programmable variable-speed operation. Its 2.6 THP rating and 2-inch NPT connections are useful starting points when comparing a replacement, but the installer must still check available electrical supply, fit and the required flow at system head.

Size the pump for the complete system

Have your installer compare the manufacturer’s pump curve with your required flow and total dynamic head. Check the filter, heater, cleaner and sanitizer requirements as well as the suction plumbing. Neither horsepower nor a maximum flow figure alone establishes compatibility.

Program useful speeds

Use a lower speed for routine circulation only when it still meets the equipment’s required flow. Plan separate operating settings for heating, cleaning or water features where needed. Energy use and savings depend on the installed system, runtime and electricity rate; no fixed savings percentage applies to every pool.

Service and replacement planning

Keep the strainer and circulation path maintained where applicable, inspect for leaks, and follow the manual’s priming and shutdown procedures. Stop the equipment and relieve system pressure before opening pressurized components. Match replacement parts to the full model and production revision; visually similar pumps may use different drives, motors or hydraulic components.

Automation compatibility

Check the exact controller, communication cable and pump revision before adding remote control. A variable-speed pump does not automatically include Wi-Fi or a complete automation system. Use the appropriate manufacturer wiring and setup instructions for the connected equipment.

Specifications

Frequently asked questions

Will this replace any pump with the same horsepower?

No. Compare the performance curve, electrical requirements, plumbing and physical fit. Match the full model rather than horsepower alone.

Is the electrical supply interchangeable?

This model’s listed supply is 115/208–230V, 50/60 Hz. Have the installer verify the unit label and configure any permitted voltage selection exactly as instructed.

Does it include built-in Wi-Fi?

Do not assume Wi-Fi is built in. Remote operation requires compatible control equipment and the correct connection for this pump.

Which manual should I use?

Use the manufacturer guide for the exact pump family and production revision. Retain the unit’s data plate information when ordering service parts.

Manuals and support

• Installation, Operation & Troubleshooting — WhisperFlo VST
• Product Overview & Performance Data — WhisperFlo VST
• Pentair ecommerce warranty information

We want you to have quick and easy access to warranty information for all the brands we carry. Please click on the links below to view each manufacturer’s warranty page:

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Note: Warranty coverage, registration, and service terms are provided directly by the manufacturer. Please review the details carefully to ensure proper understanding of coverage and claim procedures.