The RamFan EFi50 is a 16÷ electric blower engineered to move large volumes of air. High Strength, anti-static glass reinforced ABS housing is lightweight, corrosion proof and chemical resistant. The IP65 rain tested switch enclosure has a 15ft power cord attached. Precision balanced 16" x 21 blade impeller. 1/2HP 100% duty cycle TEAO motor is available in 115V or 230V. The 16" reversible duct adapter (included) may be mounted on either intake or exhaust side. Free Airflow: 2,720 cfm / 4,624 m3/hr 15ft 1-90? turn: 1,644 cfm / 2,794.8 m3/hr 15ft 2-90? turns: 1,356 cfm / 2,305.2 m3/hr Weight: 50lbs / 23kg Dimensions: 19h / 18w / 12d in (480 x 460 x 305 mm) Noise: 90dB Electric: 115/230VAC, 1., 15V-6.3A/230V-3.1A Accessories: VE1017 VE1018 VE1019 VE1020