R134a
R134a
R134a
The 1996 Suburban uses r134 Freon. The fittings to add Freon are different sizes on r12 and r134, making it impossible to add the wrong type to your vehicle.
R-134a
Was built for R12, should be converted to R134a
R134a
R134a
R134a
R134a
R134a
R134a
It is 134-a. Good luck!