FJC 6923 3 CFM 2-Stage Vacuum Pump for HVAC, Refrigeration & Automotive AC Repair - High Performance Air Conditioning Service Tool

Right now, out of the gate, I'm very pleased. I put it through the paces right out of the box. Probably 15 - 20 hours running time so far. It can bench test well below 40 micron (10-15 microns) This is perfect for my a/c work. Get the higher CFM model if you are a professional; in my case, it's perfect for the occasional jobs.