These WhisperValue™ fans represent a new economical cloice for energy efficient bathroom ventilation.
The fan housing is made of painted heavy-gauge zinc galvanized steel, with a permanently lubricated motor to deliver trouble-free operation. It has a built-in backdraft damper, and features to make installation easy, such as detachable adaptors, and firmly secured duct ends. This model also features a double-hanger bar system for ideal positioning. It may be installed either horozontally or vertically, and fits on a 3" duct.
Of course, WhisperValue fans are ENERGY STAR qualified and exceptionally energy efficient.