Accuracy class 2.5%
Nominal size: 63mm
These refrigeration gauges are used as a high and low type that can meet HVAC applications.
P.R.REF.H (Red) range from -30inHg to 500 psi – R-22/R-12/R-502
P.R.REF.L (Blue) range from -30inHg to 250 psi – R-22/R-12/R-502