Energy Savings up to 90% Compared to Traditional Pumps Dramatically Quiet Operation, as Low as 38 Decibels Features: Sized for medium-head pump applications for a faster payback as compared to larger and more expensive variable speed models Ultra-efficient permanent magnet motor design reduces noise and vibration for greater efficiency and longer pump life lnnovative diffuser and high-efficiency impeller maximize water flow and energy efficiency while minimizing noise and operating costs Components are molded of corrosion-proof reinforced thermoplastic for extra durability and long life Totally enclosed fan-cooled (TEFC) motor provides maximum energy efficiency and long-lasting performance See-through lid makes inspection fast and easy - engineered polymer remains clear and strong Lid is easy to remove and quickly locks in place with a quarter-turn Large strainer basket for ease of maintenance American designed mechanical seal using carbon to ceramic sealing surfaces Stainless steel shaft Self-priming for quick, easy start-up Listed under the new ENERGY STAR 2.0 specifications Specifications: Input Voltage: 230V Input Frequency: single phase, 50 or 60 Hz Input Current: 5.5A Maximum Continuous Load: 1.5HP Speed Range: 450 - 3450 RPM Environmental Rating: NEMA Type 3 Port Size: 1.5" x 1.5"