R & S Air Conditioning's Impressive Job Friday, April 8, 2016 It's a bird? It's a plane? It's a....... Coburn Supply's dealer R & S Air Conditioning had a large job. They used a 240' 70 ton crane to set (10) 20 ton RUUD RTU's on a job in Hattiesburg, MS. Impressive! Way to go Randell Sutton! This entry was posted in Heating & Cooling, Hattiesburg, Job Sites.