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Asked in Air Conditioning and Coolant, DIY Projects
Air Conditioning and Coolant
DIY Projects

How do you use an R134a Professional manifold gauge?

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11/19/2014

The R134a professional manifold gauge or gauges uses three hoses that each connect to the low and high ports of an AC system. The remaining hose connects to the can refrigerant. Use the gauges to check for leaks and see how refrigerant is need to refill the freon.

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