We utilize our experience and expertise on all our products to provide the best in the industry All our products feature premium components and are backed by the best team in the industry All products are engineered, assembled and tested in the USA We are trusted by millions of people for specialized products to meet their needs where they live, work and play Features- Ideal for thinwalled buildings, including greenhouses and more- Lowmaintenance solution with aluminum blade, PVC shutters and powdercoated guards- Heavyduty totally enclosed motor- Made in United StatesSpecifications- Fan Diameter in 20- Air Delivery CFM 3122- HP 42430- Amps 3819- Volts 115230- Speeds qty 1- Speed RPM 1725- Needs to be Hardwired Yes- Depth in 12375- Dimensions L x H in 12 38 x 22 34- Dimensions L x W x H in 12 38 x 22 34 x 22 34- Weight 31 lbs SKU: NRNTL8639