The difference between brands of 134a refrigerant are largely in their quality control and price. In order to keep with standards, all are required to sell compatible refrigerant.
The refigerant gas 134a is used in the evaporator and condensor and many brands of 134a contain ester oils, so yes.
No its not. 409a is compatible with r-12 but not 134a.
Same thing, R stands for Refrigerant.
There is very little difference in performance between R-12 and R-143A Freon oil. R-12 oil is more damaging to the environment while R-134A is less harmful.
yes
134A 134A 134A
That is a reference to automotive freon type 134a
they are made differently
All major brands of gasoline are basically the same. The additives added are the only difference between brands. I have never noticed a difference in one brand or another.
They carry R-134a refrigerant. It's only Freon if it's manufactured by DuPont, who hold the trademark to the name Freon for their line of CFC and HFC refrigerants (and, incidentally, no DuPont products were listed when I checked Auto Zone's website, although they did have plenty of other brands of R-134a).
HFC 134a chemical name CH2FCF3(Tetrafluoroethane)
they are different brands