Ritchie Yellow Jacket 49138 3-1/8" Blue Compound Manifold Gauge, with 1% accuracy (Class 1) calibration. All tools are new and in the original factory packaging. 

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. 30"-0-350 psi with retard protection to 500 psi.

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

**KY residents must add 6% for state sales tax.**
**Free shipping applies to the U.S. only.**