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Adapter for Shop Air to Manifold Gauges

Posted: Tue Aug 12, 2025 3:31 pm
by carburatedoron
I need to pressure test a sealed system to find a leak. Problem is, I can't find the correct fittings to hook up shop air (or a bottle of nitrogen) to my manifold gauges. The former is a typical 3/8-in by 18tpi male NPT fitting; the latter uses male ACME thread. (Picture the threaded connector on a bottle of r124 refrigerant here.)

I've asked two different AC techs I happened upon at a Home Depot parking lot this question, but neither had a clue.

Anyone have any idea where I can buy this sort of adapter?

Re: Adapter for Shop Air to Manifold Gauges

Posted: Tue Aug 12, 2025 8:40 pm
by JohnHere
Call and leave a voicemail, or send an inquiry to Tim at ACKits.com, this Forum's sponsor, with your specific needs.