Boltigen R1234YF Quick Coupler, R1234yf to R134a Adapter,1234yf to 134a Adapter High Low Side Connector Conversion Kit for AC Charging R-1234yf Refrigerant Air Conditioning System Hose Fitting

I own a mechanic shop. I bought these to use on a 2019 camry. I coupled them to the 1234 ports on the car and then attached my 134 manifold gauges. Opened the connector valves and I was in business. Vacuumed the system down and no leaks from these adapters. Charged up the system with no issues whatsoever. They fit perfectly and the ease of use is brag worthy. I could not be happier.

great product first grade easy transfer

Great fit

These adaptors look like they may not lock onto fitting( on car) very well.

Exactly what I needed. If you have a 134R system. This is the perfect upgrade to do 1234YF. Don’t take it to a shoot or buy a whole new system this is all you need.

The media could not be loaded. Me gustó mucho el producto buena calidadLas conectas a tus mangueras de r134a

Used these to do two things; inject UV dye and recharge with a gauge set. Do NOT use these to put 134A into a 1234YF system!I have a gauge set with 134A adapters, but recently had to work on a car with 1234YF, got a cannister of the new stuff [very expensive :(] and didn't feel like buying another set of gauges or hoses, so I got these adapters. Added dye with my 134A injector (BigEZ injector) and then added a very small amount for leak detection purposes. Found the leak, repaired the leak (bad O ring) and re-charged to proper amount A/C was ICE cold.In their specific use case, which is for adapting old equipment to the newer stuff, these are great.Once again - Don't recharge your new system with the old refrigerant. One is a HFC(hydrofluorocarbon), the other an HFO(Hydrofluoroolefin).They both require different equipment to run and have different temperature tables, they do not operate at the same pressure at the same temperature. The new stuff is also a less flammable, therefore equipment designed to use it may not have the same flameproofing that the old systems have. DON'T DO IT.

Seems to work well and seal good without leaking during charging but I found it had use my hand to apply pressure to the low side service port with the adapter installed because it wasn’t opening the schrader valve far enough and Freon wasn’t getting into the lines. Worked well enough for what I needed it for.