From the Manufacturer
We call it WhisperFlo High Performance Pump for good reason. This innovative hydraulic design moves water more efficiently and more quietly than competitive pumps. Under typical operating conditions, WhisperFlo High Performance Pump offers the highest water flow of any high performance single- or two-speed pump–yet with the lowest electrical consumption. Built to last a lifetime, and as a result, the industry's top seller for years.

Product Description
The Pentair WhisperFlo 2-horsepower high-performance pool pump is ideal for pool and spa combinations and for operating in-floor cleaning systems. This innovative hydraulic design moves water more efficiently and more quietly than competitive pumps. It is designed to be a tireless workhorse. Its engineered thermoplastic housing withstands extreme heat and resists corrosion. The commercial grade motor frame has a rustproof, stainless steel motor shaft and sealed bearings that never need lubrication. Engineered to provide optimum performance in any size pool or pool and spa combination, WhisperFlo is built to last a lifetime. Under typical operating conditions, WhisperFlo High Performance Pump offers the highest water flow of any high performance single -speed pump with the lowest electrical consumption. It costs less to operate, because it uses less horsepower to produce required water flow. The Pentair WhisperFlo is designed to be compatible with all cleaning systems, various filters and jet action spas. The heavy-duty/durable construction is designed for long life.

The WhisperFlo pump delivers maximum circulation efficiency at the lowest operating cost and long, trouble free life with minimal maintenance. The unique FunnelFlo diffuser and high-efficiency impeller maximize water flow and energy efficiency while minimizing turbulence and noise. Specially-engineered design assures whisper-quiet operation as documented in rigorous ETL tests. Oversized strainer basket extends time between cleanings. The see-through lid makes inspection fast and easy and the engineered polymer remains clear and strong for years. User-friendly Cam and Ramp lid is easy to remove and quickly locks in place with a quarter-turn. This is the two-speed, 2-horsepower, 230 voltage, 11.0/4.0 full load amp, energy efficient, up rated model. This pump comes with a one-year limited warranty.

Features:

The Pentair WhisperFlo two-speed full rated 2-horsepower high-performance pool pump is ultra-quiet

Unique FunnelFlo diffuser and high-efficiency impeller maximize water flow and energy efficiency while minimizing turbulence and noise

WhisperFlo costs less to operate, because it uses less horsepower to produce required water flow

Oversized strainer basket extends time between cleanings; see-through lid makes inspection fast and easy

Compatible with all cleaning systems, various filters and jet action spas; 1-year limited warranty