Good product, I need it to convert a 1234yf system to a 134a system. The valves are supplied with adapters for R22. I haven't found anything to connect my 134a tank to my R22 gauges. I took the piece from the 134a gauges that the hose attaches to, took the same from the R22 gauge and swapped them out so I could prep the R134a system. Now I have AC.
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