Appion MGAVCT 1/4 MegaFlow Vacuum-Rated Valve Core Removal Tool

This is much easier to use than the Yellow Jacket tool because I can feel whats going on inside when I remove the valve core. In vacuum I havent had a problem with either one, using a T/C gauge. The tip does tend to grab the valve core and pull it through the body of the tool, although this can occasionally take a few tries. Also on the Yellow Jacket, the captive nut can come off.

Best core tools I have ever owned. Easy to use. Buy 3. Use one on liquid valve, 1 on suction valve port and third on port of core tool to have a valve to close your micron gauge off with. DO NOT TRUST MINI BALL VALVES. ALL Yellow Jacket ball valves I own LEAK. Not these core tools. Ball valves work on charging hose ends to take pressure temp readings okay, but only use these core tools if you want good low micron pumps downs that hold around 250 microns.

Have only used it a few times but, really love it.

I use these on a daily basis during cooling season and weekly during heating season. There is not another product on the market that is comparable. I have yet to have one fail and break vacuum. As a core remover, they work flawlessly. I buy them here because they are significantly cheaper on Amazon than the supply houses.

This little device lets you pull a vacuum if you only have a 3 port gauge manifold and it works perfectly. The magnetic base is amazing for holding your valve cores so you don’t lose them.

Work good

(Update) I ordered a replacement. I found that I had to push very hard to latch the core and then it would pull out along with the retrieving tool. So it does work. The ball valve still have a very rough spot. So I am thinking thats their design, but still worry because it will have premature wear at that spot. With a very hard push to latch, rough ball valve spot and low pressure rating (what if I found leak and use pressure test I would need to take it out first) , its not good for a high price item. ---------------------------- Previous review: defeat the purpose of this tool, or most of it. I could unlock the valve core, but I could not pull it out. I even un-turn the farthest nut to let some pressure out to push the valve out, but it doesnt come out. Also, when I turn the ball valve, near the end, there is a very rough spot and I have to push harder to over come it. I was worry the valve core was there and I was crushing the core, but thats not it. However, this does leave a chance that the valve core is laying there, and I thought its just the normal rough spot. I will have to return or exchange this, since this is not acceptable. I am doing the evacuation currently, so this really is bad for me not having a functional tool.

Home a/c system

Love this tool. Makes taking out cores very easy. Ive had a few others that get the job done but this one has been the best. Comes with a rebuil kit as well so you dont have to worry about buying one for if it fails. I use this all the time and it helps me to pull quick vacuums as well.

This is a must for any HVAC Refrigeration technician. Easy to use and is magnetic, this is good to use to pull a vacuum without the shredder valve., or to replace shredder valves.