Used 38881 Sq ft Forced Draft Air Fin Cooler. Manufactured by Smithco Engineering Inc. Water Air Cooler. 1851 sq ft (Bare), 38881 Sq ft (Extended). 11'9" Frame Width x 40'OAL. Stainless Steel Tubes and Headers. (260) 304L SS Tubes .75" O.D. rated 325 psi @ 400F. (2) 40 HP Fans. Top Louvers. National Board #14763. Serial #2015B221A. Built in 2016.