What is your question?
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What is your question?
There is 2 valves for the line neither one has a L or any other sign identifying marks which one is high and low
Yep you're right! ... Reckon it font matter but - Just so you'll know, the older 'R-12' systems were reversed .. Larger connection was the low side.
I pretty much figured it out. After unscrewing the caps one was smaller. So figuring the smaller one is low pressure