QuietCool 6878 CFM Two Speed Whole House Exhaust Fan from the Energy Saver Series

Features:

• Perfect for larger size homes, install this fan at the top of the stairs, turn the motor on and watch the interior temperature of your home plummet in just minutes
• Energy Saver Classic fans include an electronically commutated AC/DC brushless motor. Known as “ECM” motors, these motors offer ultra-high efficiency with very high CFM/Watt ratios. All Energy Saver Classic fans operate on low wattage and low amperage
• Single fan operates at 6878 CFM on high, creating powerful cooling operation
• Can help you slash your A/C related electricity costs by up to 90% and pays for itself faster than any other green energy product on the market today
• Unit carries a 10 year manufacturer's warranty
• HVI-916 airflow rate for California: 5170 CFM

Specifications:

• CFM: 4304, 6878
• Duct Diameter: 24"
• Grille Length: 16"
• Grille Width: 38"
• Material: Steel
• Max Ventilation Area: 3440 Sq. Ft.
• Product Weight: 109 lbs
• Rough Opening Length: 14-1/4"
• Rough Opening Width: 36-1/4"
• Voltage: 120
• Wattage: 164, 727