OMT 4 Way Automotive AC Diagnostic Manifold Gauge Set for R134a R410a R22 | Includes R134a Couplers Self-Sealing Piercing Can Taps R410a & 29° Adapter ; Solid Brass Build; Ideal for Auto Freon Recharge

this is a good buy ,they are well made and do a good job. they are just as good as the higher priced ones.

This Orion Motor Tech 4-way gauge set has been a workhorse for my HVAC work. The gauges are accurate and easy to read, with clear color coding that makes quick diagnostics simple. The manifold feels solid and well-machined—no cheap plastic parts here.The hoses are good quality with secure fittings that don't leak. I've used this set on R410a, R22, and R134a systems without any issues. The four-way design gives you plenty of flexibility for charging, recovery, and vacuum operations.What impressed me most is the accuracy compared to my more expensive professional gauges—they're right on the money. The case keeps everything organized and protected, which is great for mobile work or just keeping the shop tidy.For DIYers or pros on a budget, this set delivers professional-level performance without the premium price tag. I've put it through dozens of jobs now and it's held up perfectly. No regrets on this purchase whatsoever.If you need a reliable gauge set that actually works, this is it. Highly recommend!

Overall, really like the guage kit, keep in mind its budget price.Everything works, and all is good, but if your kit has the older clamp type of can tap, toss it, and get screw-on type for automotive 134A cans, IF you need it for automotive work.I used this kit to self install an R410A based mini split. You'll also need some other tools to do that job, depending on what you buy, such as a vacuum pump, micron meter, flare tool, etc.Also used it recharge another home AC system, after it developed a leak. You'll need similar tools, and refrigerant, which maybe you can still find on the E Bay platform.Also recharged a couple of cars with R134a, and the kit helps to make sure you dont overpressure the High and Low side lines.Would have given it 5 starts, and maybe it deserves it, but the included can tap is garbage. Looks like the new kits now have the better Can adapters, and if so, its definitely worth the money for a homeowner, DIYer.By the way, you can find lots of instructional videos on Youtube to help you figure out how to use it.

Sheeesh I went through 2 other brands stating that they worked with R410A. They did not depress the Schrader valve. Sent them backThis kit works great and actually has the right depth to push in and open the valve for R410A as advertised. Nice quality. My AC is topped off and running perfect.

Great affordable gauge set,do side work at home and these are great when you don't have a evac and recharge machine,even just to check pressures,accurate and good quality

I honestly have mixed feelings on this manifold set coming from a high end Testo digital manifold. I have been looking for a quality manifold that would be used as a spare set while traveling. The reviews led me to believe this was a great manifold that wouldn't break the bank. Unfortunately, I will have to continue my search after putting these through some tests. My biggest gripe is that the manifold has an identity crisis. The listing shows both auto and residential HVAC applications with regard to the manifold but I think this is a case where being something for everything results in being mediocre at best. In my particular case, I needed to add refrigerant to a heat pump using the low side (blue) pressure port. This manifold has the black labeled vacuum valve tied to the low side pressure port so you have to use that valve for charging. This also means you don't get to use the sight glass. The yellow refrigerant valve is tied to the high side (red) port and you cannot isolate the refrigerant and vacuum ports so you literally have to use the vacuum port for charging with the aforementioned lack of sight glass. The other observation was significant restriction in the manifold. During the charging process, I noted the manifold developing significant frost on the entire left side covering the low pressure and vacuum valves and knobs. The valves were fully opened and I was using a special device that mounts to the refrigerant tank to safely charge via liquid without slugging the compressor. My other gauge set does not experience this issue so I can only assume that the valve ports are smaller than normal and/or this manifold isn't a good match for my use-case of a TXV residential heat pump being charged using the subcooling method. Lastly, the hoses looked very similar to a set of yellow jacket high pressure R410A hoses that I have. The pressure ratings were high visible on the hoses and I liked the little wing nuts that could be used to tighten the hoses. That being said, I was disappointed that these were not low loss fittings. I really struggled with getting the nuts off of the high pressure side resulting in more refrigerant escaping than normal. Not good. The charging hose also struggled with refrigerant coming out of the cannister and presumably became brittle enough that the neck allowed refrigerant to occasionally seep out if the right angle was not maintained. Also not good. I will say that machining and heavy duty metal used in constructing it is great and provided a heft that felt like a really good manifold. The gauges have anti-vibration technology that worked and kept what appeared to be consistent measurements during the charging process. I am presuming they were also accurate but as we know there is a big difference between precision and accuracy in the scientific method. I also liked the case a lot. It is better than my primary manifold which is just a big empty plastic box that results in everything rattling around. Overall, I had a hard time with this review in that I had to evaluate my expectations for manifold performance vs budget vs advertised features vs the significant number of positive reviews that led me to my purchase. Unfortunately with the real-world issues that I experienced while using the manifold, I'm not able to recommend it as highly as others. I think it is a solid 2.5 rounding up to 3 stars with too many compromises for me to want to keep it for my use-cases at the current price point. Thanks for reading my review and letting me express my opinion on this item.

Product arrived well packaged. HOWEVER, the yellow line had no gaskets on either end and when I went to add coolant, it was leaking coolant at both ends! NOT HAPPYEDIT: Seller responded to my issue and sent a new set to me quickly, took about 5 days to arrive. New set had the gaskets and it has worked great! Kudos to the seller for taking care of a product issue that made the original set worthless.

The entire unit is cheap junk. You get what you paid for. Can tap does not tap R134a cans with any regularity. After a couple uses, it won't tap any. The tap valve leaks and won't close completely when in the closed position. The low pressure side valve does not seat and tap properly. It can't open up the schrader valves with any regularity. All of the connectors to the valves and body loosen up and leak unless they are constantly monitored and tightened. I cannot believe how junky this set is. How have so many people used this POS effectively that they rate it with multiple stars? If QC is this low, it's not worth the lottery of getting a bad unit.Then, to add insult to injury, the adjustment screws on the gauges don't turn at all. They appear to be decorative. My low pressure side shows 4 psi when completely empty and disconnected. The screw won't budge, it just deforms. I created a handle on a screwdriver so I could turn it with some force and the screw just deformed. High side is identical.GARBAGE CHINESE JUNK MEANT TO STEAL YOUR HARD-EARNED MONEY!

Great quality. Does the job. Different in the respect of using older machine where one has to disconnect yellow line on machine between vacuuming and filling. Great for older machines, Not automatic machines. Saves time, has, the environment 😂.Only down side is the plugs missing to hold taps. So used old set male plugs and fixed to machine.

La calidad del producto y los accesorios también

Muy buen producto de muy buena calidad los materiales

Orion Motor Tech Ac Manifold Gauge Set is a great addition to my tool box very easy to use and complete I would recommend it for all mechanics.

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