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R12 Vacuum

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09-05-2021, 08:28 PM	#1
44SAA Registered User Join Date: Apr 2017 Location: Fort Worth Posts: 111	R12 Vacuum Started to pull vacuum on my OEM R12 system and noticed the valve on the high side is a smaller diameter than the low side valve. As a result my R12 dual gage can’t fit on the high side valve. Can I just pull vacuum using the low side only? Thank you Attached Images

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