LichampLichamp HVAC Gauges with Hoses, AC Manifold Gauge Set R134A R410A R404A R22 Refrigerant Gauges

This part is great for what I paid for it. It is easy to read the dials and quality is great.

With 4 hoses you can attach your vacuum pump and the can of Refrigerant at the same time. Use the pump to get the air out of all the lines, turn the pump off and shut the valve to the pump, open the refrigerant can tap and recharge the system.Other AC Manifold Gauge Sets only have 3 hoses and you have to remove the vacuum pump to attach the hose and this can let some air in the system if you are not carful.For my use I did need to buy an adaptor for a different type of refrigerant bottle that did not come with this set, but every thing else was here. There was an adaptor needed for the vacuum pump and this was included with this AC Manifold Gauge Set.

The first sample that I have received had an issue and was leaking from the small glass window, yet the Seller or Amazon just accepted the return with not much question asked and sent a replacement within 2 days. So kudos to them for this.The second sample worked fine and has been used to recharge a r410a residential "water pressure heat pump" apartment unit.The gauges easy to read, decent gloves are provided, the hoses looks fine and all the knobs rotate smoothly.I have not used the car adapters yet, but the labels on the knobs seems to be marked at the opposite direction, other than that they seems to be of good quality.The only grip I have about this set, is that the hoses do not screw all the way in as smoothly in to the service ports and manifold, as others that I have seen on youtube videos.In my case they screw in well the first 2 turns, then they become a bit hard and they are still not snug enough, therefore they made me leak a little more more refrigerant than expected. I needed to use a plier to grab and screw them tightly enough.I suggest to break the threads in, before using them the first time, by tightening them back and forth a few times. I did that and it improved quite a bit, yet on the high side ports it still needs a plier to tight them up.Anyway, once they are tightened up, the hoses do not leak at all and the manifold works as expected, The knobs are really smooth and allow you to use them precisely. Also there is a purge valve on the yellow/supply line, which allows to purge air before charging refrigerant.I used this set once to charge R410a refrigerant and another time to inject sealant and a chemical to remove eventual moisture from the system.So I would say for less than 60$ plus a bottle of refrigerant, it was a good investment since it allowed me to service my AC unit without having to rely on HVAC techs, that in NYC are very expensive ( it would have cost me about 650$) and normally service your system incorrectly so they can come back again soon and try to sell you a new unit when it is not necessary.

Great product

There good gages if you don’t plan on using them often my only real issue with them is that they don’t have a place for the hose to attach to on the back instead you have to disassemble the manifold form the hose and put them into the case

I purchased this set of AC gauges because my R12/R134a Robinair gauges were cooked. Since I only work on AC only a few times a decade, I decided to give this offbrand a try. I honestly couldn't tell the difference between my Robinair set and this set. They worked well, the couplers seemed to be decent quality, and I had no issues charging my system. Give them a try, I think you'll be satisfied

The seals on the hose kept blowing out, the first time I used them, until there wasn’t any left to replace it with. Leaving me with the inability to finish the job. No one was happy with this outcome. So, I had to go buy Yellow Jackets from a local distributor. Which is what I should have done the first time. Hindsight! Tried to return it but can’t find a place to do so! SERIOUSLY? Had to choose one star. Otherwise, it would have been zero stars for this product!

Not the highest quality but for home use it was just what I needed to install a replacement mini split. Already have refrigerant gauges for 134A from being in the business. These allowed me to evacuate and vacuum check for leaks then check operation once charged with refrigerant. No muss no fuss worked perfect. Now going to check our main a/c system before summer gets here.