Bathroom Ventilation and Exhaust Fan

Very quiet bathroom fan (1.5 sones) and Strong air movement (80CFM) for bathroom up to 85 Sq. Ft
Housing size: 7.5in x 7.25in x 6in with 4in duct. ceiling mounting Opening: 7.6in x 7.3in.
Please note that the housing height of this fan is 6 inches. If you replace an old fan with a housing height of 4 inches, make sure that the ceiling is installed deep enough before replacing.