Sold as each. 14" dia. 1353 CFM. 2 pc. base adjusts to 3/12 to 12/12 pitch. Internal brace. Permanently lubricated "Delrin" bearings. Mill galvanized steel. 2 yr. warranty. Boxed. Manufacturer's number: 52613. Country of origin: United States. Distributed by Air Vent,, Inc.