Orion Motor Tech 4 Way AC Gauge Set for R410a R22 R134a Refrigerant, 4 Valve Automotive AC Manifold with 5ft Hoses, R410a Adapters, Can Tap

Why did you pick this product vs others?:For the price and versatility it's a great buy.

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Great kit.....worked like a charm....love having Low/High/Vacuum/Refridgerant hooked all up at once.....valves are of a decent quality.This gets four stars due to the super cheesy can tap they give you....had to use my old one. This POS never had a chance of sealing.Funny that OMT would have such a great manifold and such a crummy can tap.....

The size is perfect for everyday jobs.

Perfect

Update: The connectors are garbage. I was able to sucessfully charge a '92 Corvette, and managed to get the gage set on to my 15 silverado to see how they fit because I was having trouble getting them to connect and disconnect. I got them on, but the low side was stuck on the truck. I fiddled with it for about 1/2 hour and it finally came loose. Skip ahead to today and I can't even get that stupid low side connector to connect to my 05 Camry. The high side did connect but the low side even feels wrong when you're starting it onto the stem, much less trying to force it on. I'm not aware of different sized couplers other than the high side being different than the low, but this low side connector seems a little too small in general. The gages work great. The couplers are absolute garbage, and I'm searching for new ones somewhere if I can find them.Original Post: First impression: I went out on a limb and bought this less expensive manifold gauge set. I'm pleased with it. The connectors are a little tricky, especially the high side. But they do connect and come off. You just have to work them a little bit. The valves all seem to be of decent quality as well as the gauges. It's nice having 4 hoses and valves although it's not really necessary. The yellow has a bleed off valve at the top - nice. The gauges read into the negative for measuring vacuum as well. Really handy for checking to ensure the vacuum is holding (Making sure there are no leaks before charging). I actually left all the valves open and there were no leaks, meaning all the connectors held vacuum too. So they seal nicely. It comes with all kinds of adapters and I was able to make all the connections I needed, including to the vacuum pump I purchased. It was especially nice not spending hundreds on a set like this.Update after about a month of use: I used this a handful of times while working on my '92 Corvette. Finally got the A/C system working and blowing ice cold air. However, unlike when I first started the project (Almost complete A/C system overhaul) the high side gauge didn't seem to be reading anymore. I figured maybe it could be the r134a retrofit adapter on the car, maybe the valve wasn't letting refrigerant through for the gauge to read. So I figured I'd test it on my 2015 Silverado. This truck Is practically new, and comes factory with R134a so it has correct and quality ports. I again had trouble connecting the connectors, especially the high side connector. It finally clicked in to place. The gauge worked correctly though. Then it was time to disconnect and I couldn't get the connector off. I fought with it for about 1/2 hour and got in a little bit of a panic because this truck is still under warranty and my daily driver. I can't have a connector stuck on there. Finally, with a pair of channel lock pliers it miraculously came loose with a bit of twisting, finagling, and forcing.I don't know where this gauge set is made as I can't find that info anywhere on this site or on the product itself. I'm leery of Chinese products these days. I can't really say the quality of this is that poor but the connectors really concern me. I would think a good quality set of connectors wouldn't have issues like this. I didn't bother contacting Orion Motor Tech about this because I'm not sure I want a replacement connector as I'm not really convinced the quality of the actual connectors is there and since they are screw on I might look for a quality pair of connectors to purchase elsewhere instead. I've used the plastic connectors on the cans before and never had issues like this. That's with cheap plastic connectors.Really the only reason I didn't give this 5 stars is because of the trouble I've had with the high side connector primarily, and the fact that it was stuck on my truck was quite concerning. If this set had better connectors, I would recommend this to anyone all day long. However, I do feel comfortable recommending it as a less expensive alternative to a professional set and a person could buy a set of higher quality connectors for it as I likely will.

Worked ok for pumping lines down but I question how long the seals will last. Rubber bits coming off the seals after first use...The can adapter for adding refrigerant simply does not work propely, when screwed down all the way to the refrigerant can. The only way to get the refrigerant out of the can is to let it leak out of the connection. Basically you have to start unscrewing the refrigerant can from the adapter while the pin is depressed into the refrigerant can. If you're good you can get the perfect point where the refrigerant doesn't leak into the atmosphere and still comes out but it's a VERY narrow window. Tilting the refrigerant can from this point can cause a leak. Oddly, the pin doesn't have the be extended that far for this to work, which indicates that it's not sealing the pin to the can. I also tried two cans of r134a, same result. But if you screw the can all the way down, then depress the pin, NO refrigerant escapes the can. I mean NONE! Even after fully depressing the pin into the can, fully retracting the pin, then unscrewing the can, absolutely no pressure relief at all...make no sense at all. The little stand alone blue recharge hose works infinitely better but you can't vacuum the air from it...Of course it's too late for me to return it by the time I figured it out. Mostly used for diagnosis and pumping which it works ok for, gauge needle doesn't go all the way to -30in of mercury. I know on other gauges my vacuum will suck vacuum lines to -30in in well under 5 minutes. 45min later and this gauge reads just above -30. Based on the reviews and price I thought this was it but sadly, this is not it.

Ok