Pentair WF-3 3/4 hp Whisperflo Pump. 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 pumpyet with the lowest electrical consumption. Built to last a lifetime, and as a result, the industry's top seller for years. Features: Oversized strainer basket and volute - industry standard in pool pumps. Standard and Energy-efficient Square Flange Motors available. Lower HP's deliver higher performance than industry standard. Compatible with all cleaning systems, various filters and jet action spas. Heavy-duty/durable construction is designed for long life. Designed for residential and commercial applications. New motor increases life, energy, efficiency, ease of installation and better cooling for long service life. 115/ 230V, 2" Plumbing Connections, does not include power cord.