High and Low side a/c

The 134 "jug" I bought (30lb) is NOT standard 1/4 flare. It is some special "new" fitting and required an adapter. The first one I bought off ebay did not fit. I don't know if it was the incorrect fitting, or just threaded wrong by the guy in the backyard shed in China. I don't know if some are different. "It would seem" that 134A would be "standardized" LOL

The 134a for commercial refrigeration is a different drum..... Below is a picture of the one I have currently.
BTW I just called my supplier and its $110.00 a drum.

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