60,000 acfm NA 347,282 2014 RTO quote from Epcon. Cost were in $/ton 3 Aerospace RTO w/ Zeolite Concentrator 60,000 acfm NA 367,276 2014 Concentrator quote from Anguil. Cost were in $/ton Spray Finishing RTO 200,000 scfm 3,300,000 1,050,000 ~2008 4 Spray Finishing RTO w/ concentrator 12,000 scfm 2,500,000 300,000 ~2008