Review on ☃️ Mastercool 69100 Blue A/C Recovery System, Complete by Johnny Wheat

My experience with Mastercool products is not as good as other users here. The recovery unit was serviced once under warranty due to a complete failure of the high pressure recovery line circuit. Hose couplers probably cost me several hundred dollars because the service port valves on the high pressure side were leaking after pump down. I kept the block but threw away the hose connectors. I had the same experience with a set of Mastercool gauges I bought from Napa. Hose couplings damaged most of the fittings I was connected to. I think the pressure mechanism in the clutch pushed the valve down too far and damaged the seat. Maybe I have a bad blockage? In my shop I have replaced most of my AC equipment with the Robin brand and am unaffected.