R1234yf Quick Coupler 1/4 Inch Fitting for AC Refrigerants

Good value for the money. Not the top of the line but they work great. They are more compact than my other ones so they will fit in a tighter space which is nice

Everything came and was as described

Price them at an auto parts house. This deal is a steal! Works great too.

A nice feature is you have to close the valve before being able to remove the coupler. Won't blast the fluid everywhere on accident. A+ for what I needed.

They may say R-1234yf but they don't fit. I struggles to get them on. The high side actually went on but then you couldn't turn the knob to open the system. The low side would not attach at all.

These works just fine; however, I first thought I had a huge leak in the system while pulling a vacuum only to find the high side adapter was missing the o-ring. Fortunately I was able to pull one from my other adapters.

I used these the day I got them. Pressure test and vacuum had no issues. So far so good. 2018 GMC. Good value IMO.

Affordable and easy to use saved me money tackling job myself since I had all of the other equipment necessary for the job.