Yellow Jacket 49138 3-1/8" Blue Compound Gauge 30" 0-500 psi for R22, R404A, and R410A

With 1% accuracy (Class 1) calibration. Large 3-1/8" 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.

Key Features and Benefits

• Flutterless technology with brass surge protector to minimize needle pulsation
• Brass gauge movement
• Copper alloy Bourdon tube
• 1/8" NPT Male connection
• Color-coded red for pressure and blue for compound
• Color-coded refrigerant types

Specs