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View Full Version : Can you use the r22 gauges to read the 410 preasure

moonshiner
Aug 23, 2010, 09:51 AM
Can you use the R22,gauges to read preasur of the 41a
hvac1000
Aug 24, 2010, 08:38 AM
Not safely. R-410A has a much higher operating pressure than R-22.