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"Uno" means one in Italian and was chosen to mark the release of Arduino Software (IDE) 1
Groove Joint
Diaphragm valves with swivel seals for more positive seal and less wear
5/16″ are UL recognized to 4000 psi (276 bar) minimum burst
Yellow Jacket 49138 3-1/8" Blue Compound Gauge 30" 0-500 psi for R22, R404A, and R410A "Uno" means one in ItalianWith 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. 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 red for pressure and blue for
