Orion Motor Tech R1234yf Quick Couplers Set, R1234yf Adapter Tool Kit with Self-Sealing & Puncture Can Tap, High & Low R1234yf Couplers Set with Valve Core Remover for 1/4" & 1/2" HVAC Charging Hoses

Worked great to "adapt" my r-134a manifold gauge set. Cheaper than buying an entire new set for the same tool essentially

Works as advertised.

Fit perfectly to existing gauge set. Great quality.

I mostly work on refrigerators so i have a gauge cluster that is screw on 1/4". I rarely do my own services on my ac but with a project coming up I was able to grab these adapters to allow for my quick connections. It doesnt seem to leak but it does seem cheaply made. I hope it will not leak to fast into its life. Other than that it is quick so if you are a professional stick to the expensive gauge clusters but if you already do appliance work or ac service and just need one for other projects i recommend it

Works great with my old set of guages and hoses saved me a lot of money because I didn't have to buy the whole new set for the 1234yf cans.

I am not a pro HVAC tech. I do have gauges for 12/22 & 134A. I am gifted where I do most anything well. Carpentry, Plumbing, Electrical and HVAC. Welding is another story. I need to work on that. These adapters work as one would hope. I am pleased with these, They are well made.

Kit was incomplete. It was missing the 1/4 to 1/2 inch adapters and valve core remover.

I don't know if these fittings are trash or my low pressure fitting is buggered up. The low pressure (blue) fitting was very difficult to snap onto my ac line and even more difficult to remove.I didn't have any problems with the high pressure fitting.