Features and Benefits Measures level of refrigerant for accurate charging of A/C Glycerin-filled gauge - shock and vibration resistant Heavy duty die cast metal housing is ergonomically designed for ease of use Needle locks in position until re-set Only for R-134a A/C systemsHeavy duty pressure check gauge measures the level of refri....(more info)
Features and Benefits: Measures low side pressure for accurate charging of air conditionerIndicator needle locks into place for easy viewing....(more info)