Orion Motor Tech R1234yf AC Gauge Set, 4 Way AC Gauges W Hoses R1234yf R134a Quick Couplers Self Sealing Can Tap for Freon Charging, AC Gauge Kit for R1234yf R134a R404a, 4 Valve Manifold Gauge Set

As a full-time mobile mechanic, I require tools that are both reliable and versatile. This AC gauge set from Orion Motor Tech has exceeded my expectations. I've used it on both R1234yf and R134a systems without any issues. The gauges are precise, and the quick couplers make the job efficient. The build quality is solid, and the included accessories are a great bonus. Highly recommended for professionals seeking a dependable AC gauge set.​

Used this to recharge cars r1234 a/c system. Gauges seemed to be spot on and no issues with leaks. Everything fit tight and seems well built. I love the 4-valve set vs. the 3-valve sets. Its great to have everything hooked up and ready to go. Great set at a great price. Perfect for the DIY'er.

Like it a lot. Worked well to recharge my system with 134a. The only thing missing and I have four star for is that it's missing the 134a self tap connector for 134a freon cans.

It is not a super high quality product, it is not for use in an everyday repair facility, but if you only need some gauges for every once a month or so, in light volume repair, these will do just fine. They're functional, they appear to be accurate, I had no problems with leakage, they are of a decent design, the fittings all fit properly and for what I needed, it for it was a fair value for the money.

Very good

Nice gauge set. A couple things though. First, it would be nice if the kit included a 134a can tap, since this is a gauge set for 134a. If you purchase this set make sure you buy a can tap for 134a. Second, make sure you check all brass fittings. One of the 134a quick coupler brass fittings for the high side had a defective machined taper for the sealing area and it leaked. Just make sure you check them all. This was resolved by OMT after I contacted them. They sent out new brass fittings very promptly. Their customer service after sale was fantastic.

These are cheap gauges that work great. I've used them in professional everyday automotive repair. Comes with pretty much everything you need to use out the box.

I purchased this set to replace a worn-out ATD manifold set. The package arrived intact and was well-packed. After trying to use the set for an A/C charging job, my impression is the following:1) The manifold and control valve knobs were well-crafted with quality aluminum, operating the control valves are effortlessly.2) The high and low gauges were encased in a plastic molding, they are barely adequate for viewing. As pointed out by some buyers' comments, the LOW side gauge is really hard to read in any light condition due to black lettering on a blue background. In low light, the back lettering would disappear into the blue background (see pic). I had a really hard time reading it! It would have been perfect if the design was white lettering on a blue background.3) The two R134A, and R1234yf adapter sets, and the R1234yf canister adapter are solid metal with aluminum control valves, which are smooth to operate. No R134A canister adapter was provided.4) The provided hoses are "budget" quality, stiff nylon hoses with cheap brass fittings and hard nylon seals. The fittings, whose tolerant are out of spec that they came loose easily, causing leaks. I've tried to tighten them down more than usual, but not helpful, so I had to swap them out with a set of the Yellow Jacket hoses to finish the job (see pic's).5) The set is also equipped with a valve core tool, a stubby screwdriver, and a small collection of seals and O rings in a small container.6) The plastic case is made of light plastic with plastic latches for opening and closing. The two halves of the case are kept together with soft plastic hinges in the back. The case is okay for DIY light uses, but it may not last for professional uses due to daily uses.In summary, this may be a set for DIY folks on a budget if you can live with the negative attributes described in above. It is not recommended for professional auto techs. I had several OMT products, but this set is below my expectations for typical OMT quality products.