Product Overview

The Pentair WhisperFlo High Performance Pump Single Speed 1.1 THP | 015583 is a durable, high-performance pool pump designed for dependable residential pool circulation. Built on Pentair’s trusted WhisperFlo hydraulic platform, this pump delivers strong water flow, quiet operation, and long-lasting performance for everyday pool filtration and circulation.

This updated WhisperFlo single-speed model features a TEFC motor and DOE-compliant design, making it a reliable replacement option for customers who need a traditional single-speed pump while maintaining strong hydraulic performance.

Ideal For

Residential in-ground swimming pools

Standard pool filtration and circulation

Replacing existing Pentair WhisperFlo pumps

Customers needing a single-speed pump option

Small to medium pool systems

Pool systems using 2" suction and discharge plumbing

Key Features

1.1 THP single-speed pool pump

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

TEFC motor design for dependable performance

NEMA Premium Efficient motor technology

Quiet WhisperFlo hydraulic design

2" suction and discharge ports

Oversized strainer basket and volute

Cam & Ramp see-through lid design

Self-priming performance

Durable thermoplastic construction

Designed for residential in-ground pool applications

Benefits

The Pentair WhisperFlo 015583 is built for pool owners who want dependable single-speed circulation from a trusted pump platform. Its high-performance hydraulic design helps move water efficiently while maintaining the quiet operation WhisperFlo pumps are known for.

The dual-voltage design gives installers more flexibility, while the TEFC motor helps protect the pump motor in demanding outdoor equipment pad conditions. With 2" ports and a familiar WhisperFlo footprint, this model is a strong option for replacing many existing WhisperFlo installations.

Specifications

Warranty & Compatibility

Professional installation is recommended for proper electrical setup, plumbing connection, and warranty compliance. Before ordering, confirm voltage, plumbing size, existing pump model, horsepower requirements, equipment pad space, and whether your application requires a single-speed or variable-speed pump.

Customer-Facing Q&A

Q: What model number is this pump?
A: This listing is for the Pentair WhisperFlo model 015583.

Q: Is the Pentair 015583 a single-speed pump?
A: Yes. The 015583 is a single-speed WhisperFlo high-performance pool pump.

Q: What is the horsepower rating?
A: This pump is rated at 1.1 THP.

Q: What voltage does this pump use?
A: The Pentair 015583 supports 115V or 208–230V power.

Q: What size plumbing ports does it have?
A: This pump has 2" suction and discharge ports.

Q: How much does this pump weigh?
A: The listed weight is approximately 52 lbs.

Q: Is this a good replacement for an older WhisperFlo pump?
A: Yes. This model may be a good replacement option for many existing WhisperFlo installations, but plumbing, voltage, and performance requirements should be confirmed before ordering.

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