No its not. 409a is compatible with r-12 but not 134a.
Any refrigeration supplier provided you have the proper federal certification.
R-22 or 410A
R-22 has HCFC (hydrocloroflorocarbons) R-410A has HFC (hydroflorocarbons)
Most home systems use R-22 refrigerant. R-410a, known as PURON, is also an increasingly used refrigerant. If you see a pink sticker on the outdoor unit, it will say on the tag with the model and serial numbers r22 or 410a. "Freon" is a trademark of DuPont, and is NOT the real name of refrigerant. "Freon" was R12 and is no longer made.
ester oil
No Difference
Is there a special requirement to have a recovery tank at 400psi for all refrigerant
8.2
Refrigerant Gasses such as R-22 - more commonly known as Freo, R-410A, R-407C, R-12, R-134A and R-717 or Ammonia!
Refrigerant Gasses such as R-22 - more commonly known as Freo, R-410A, R-407C, R-12, R-134A and R-717 or Ammonia!
Have a CERTIFIED PROFESSIONAL - who will know what they're doing - recover and replace the blended refrigerant. AC system work - whether at the home or on a motor vehicle - is NOT a "do it yourself" task, and it seems now that you have a better understanding of why that is.
200.4 Psig