Large 4″ gauges are housed in a red or 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 minimizes needle pulsation
- Brass gauge movement
- Copper alloy Bourdon tube
- 1/8″ NPT Male connection
- Calibrated to 1% accuracy
- Color-coded blue for compound and red for pressure
- °F features color-coded refrigerant types: R-22, R-134a, R-404A and R-410A
- °C features color-coded refrigerant types: R-22, R-134a, R-404A and R-407C
*Features retard protection to 500 psi.