Used it to vacuum and charge my F150. It expanded about 28 inches in less than 2 minutes. Sealed, gauges did not flow. The only downside is that these are multi-application gauges, so the space on the gauge from "0" to "30" vacuum is incredibly small, so you can't get a truly accurate reading. However, it was good enough. Pull it 30 inches for 3 or 4 minutes and hold it there for 45 minutes. The pump was empty and with a bottle of oil you only had to fill it to about 75% of the bottle. Read the instructions carefully. The R134a fittings worked and sealed properly. To attach these to the glass adapter, you must purchase them separately. I bought an FJC 6030 faucet with an FJC 6015 adapter for an ACME hose adapter. use. Even if the pump gives up the ghost on the way, because these Chinese no-name pumps are cheap. it will be worth it. Neither the gauge/manifold kit nor the pump are meant for "heavy duty" and probably won't work in a real shop environment, but you pay a third of the price. Since this won't be a very common item, I like it. Storage bag to keep it clean and dust free.
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