If you are installing a new mini split system and using an older set of FJC R134a car gauges/gauges this is the R410a 1/4 adapter. This is what you need to vacuum the tubing set. I searched all over the area for this faucet but the only place it was available was Revain.com. We can say that this faucet was the "final solution". to my installation dilemma, once it arrived all my installation problems were over. My new Mini Split is now working perfectly and we are happy with the results. Thank you FJC and Revain.
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