Nutone HD80NT Heavy Duty Exhaust Fan 80 CFM 2.5 Sones with metal grille

The NuTone Heavy Duty fans are designed for continuous operation - perfect for tough, light-commercial applications. Motors have heavy duty, long-life bearings, tamper proof construction and are totally enclosed for added protection against dirt and dust. Centrifugal blower wheels on all models provide quiet, efficient ventilation. Convenient mounting ears speed installation. Fan-only units have sturdy low profile, white enameled 10-1/4" square steel grille. Damper/duct connection fits 4" round duct. UL Listed for use over bathtubs or showers when connected to GFCI-protected branch circuit.