Yellow Jacket 49118 A2L Manifold Gauge – BLUE, 3-1/8″ (80mm), R-32/454B/410A PSI °F A2L Compatible

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.