Boltigen R1234YF High and Low Side Quick Coupler, R134a Quick Coupler Connection to R1234yf, R134a to R1234yf Quick Adjustable Adapter Connector Conversion Kit for AC Refrigerant (Type 1)

Part came on time worked great.

The fittings make work easierI install the regular service hoses

R1234yfは、価格が高いので、ガス漏れ点検のためにこの商品を購入。実際使ってみると、低圧側は嵌るもののガタガタでガス圧も検知できない状態。高圧側は、クイック・ジョイントをロックする事さえ出来ず、更にこちらもガタガタで全く使い物になりませんでした。このような商品を販売できる事が信じられません。アホらしくて、返品する気にもなりません・・。（レビューの★は一つ付けましたが、付けないと投稿できないからです。勿論★はゼロという事で）

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.

Will up date when I do use them , they seen ok