Listing is for a brand new a/c hose which will work with any refrigerant. I have been building a/c hoses for 30+ years. The hose has a One Year Warranty.
Application:
1965 1966 Ford Mustang with factory a/c and a V8 engine.
This is the suction hose from the evaporator to the compressor.
I will need to know the year of your Mustang.
65's will have straight fittings.
66's will have a straight and a 90 degree fitting.