WebSep 6, 2006 · Automotive Air Conditioning Information Forum (Archives) Provided by www.ACkits.com. ... My gauge set is made by US General from Harbor Freight Tools. I have the yellow hose attached to the middle connection. ... The system held the vacuum for 15 minutes then I tried to put r-134a in the system but I think it was leaking out the low … WebApr 13, 2024 · Designed for deeper vacuum draw, this vacuum pump pulls vacuum down to 75 microns. Precision machined one-stage pump …
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