Robin Air Cool Tech 34700Z A/C Machine, it can recover, recycle, and recharge, evacuates the systems. Manually injects oil into A/C system if needed. Regular maintence done by Midwest Equipment. Has newer filters and lines rebuilt with newer gauges. This machine cost $4,600 new and we bought a new A/C machine as a tax write off December 24th of 2018 and this is now a surplus machine. We have trucks or cars to try this machine out on if you want to come down and take a look at the mechine and try it out and demo it with our shop manager by appointment 8:00 AM to 5:00 PM Monday through Friday. Was $3,200 rebuilt but reduced to $2,900 cash price.