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80MM BLUE R410A/22*F GAUGE 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 compound Color-coded refrigerant types *These gauges have °C and °F on dial **Features retard protection to 350 psi ***Features retard protection to 500 psi ,
