Drainvac Twin Turbo Central Vacuum Square Footage (Covers): 	From 5,000 - 20,000 sq.ft. Max Airwatts Suction Power: 	1340 Max Airflow cfm | Waterlift: 	145 x 2 | 190 x 2 (Twin Motors) Max Amps: 	15.5 Dirt Capacity: 	9 Gallons, Volts: 240V