Yellow Jacket 49138 Class 1 3-1/8" blue compound gauge, 30"-0-350PSI for R-22/404A/410A, Deg F
With 1% accuracy (Class 1) calibration, large 3-1/8" gauges is housed in a blue steel case with front recalibrator screw. High visibility colored temperature scales are easy to read through the full view polycarbonate crystal.
- Flutterless™ technology with brass surge protector to minimize needle pulsation
- Brass gauge movement
- Copper alloy Bourdon tube
- 1/8" NPT Male connection
- Calibrated to 1% accuracy
- Color-coded blue for compound
- Color-coded refrigerant types
