Reintroducing WhisperGreen® Select™, our whole house IAQ solution with enhancements. First, our improved single-hinged Flex-Z Fast™ bracket for more flexible and easy installation. Other enhancements include a new elegant grille, an environmentally friendly 26 gauge Zinc-Aluminum-Magnesium (ZAM) housing design and dual access junction box that helps simplify wiring in tight spaces. KEY FEATURES Customizable, all-in-one whole house precision ventilation solution ideal for use in the bathroom, laundry room, sun room, basement or garage Pick-A-Flow® Airflow Selector (110-130-150 CFM model) combined with SmartFlow™ technology simplifies the selection process and ensures optimum performance to meet code and reduce callbacks New! Environmentally friendly 26 gauge Zinc-Aluminum-Magnesium (ZAM) housing design New! Improved Flex-Z Fast™; single-hinge bracket with added flexibility, fast and easy installation New! Elegant grille design complements the aesthetics of any room