Gauge kit and vacuum pump work great. My air conditioner was fully evacuated and charged in less than two hours, and I spent most of my time making sure I didn't have any leaks. For those referring to the kit that does not come with Freon bottle adapter, Kit: https://www.amazon.com/gp/product/B07D18WVFD/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 works fine with this one Pressure Gauge Kit.
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