M2-430 JB Industries Low Side Blue R-22 / R-134A / R-404A Compound Gauge - 2-1/2" - STANDARD 2-1/2" GAUGES - Compound (Low side, blue) 2-1/2" gauge for R-22, R-134A, R404A. High quality steel case standard size gauges are the identical gauges used on JB's manifolds. Will retrofit as replacement gauges on all other manufacturer's manifolds. Surge dampened for accuracy and full size brass movements. Recalibration screw easily adjusts if gauge does not zero out. High impact clear view lexan lens with 1/8" MPT connection. Gauges are sensitive instruments and should not be subjected to pressures beyond scale. 30" vacuum to 120 psi, retard to 350 psi. Made in the USA.

R-22 R-134A R-404A