The large Yellow Jacket 49137 3-1/8″ R-22 / 404A / 410A Gauge is housed in a red steel case with front re-calibrator screw. With 1% accuracy (Class 1) calibration and high visibility colored temperature scales that are easy to read through the full view polycarbonate crystal this gauge will ensure an accurate diagnostic every time.
Product Features
- 3-1/8″ Dry Pressure Gauge
- °F, 0-800 psi
- R-22/404A/410A
- 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 refrigerant types

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