R-134a
R134A
R134a
Freon is R12. Your 1997 Chevy uses R134 Refrigerant.
r-134
Was built for R12, can be converted to R134a.
1994 Chevy lumina freon type
R134a
134 freon
R134a
R134a
R134a
R134a, R12 is no longer available if you system has no major leaks, ask around local shops for r12. there's still some out there.