This set is very well put together. I have had this set for 7 years and the gauges are accurate to this day. I replaced my entire AC system on my 00 Trans Am and it works great with my Robin Air 8cfm two stage vacuum pump. I used everything that came with it, even a valve tool, to remove the faulty A/C valve that was leaking freon out of my high sideline and replaced it with another. Everything you see here works and nothing else is required for the air conditioner to work properly or add freon to the system. It's ALL YOU NEED!
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