Does anyone know of a vendor who offers barrier hoses for Vanagon A/C?
Or do you have to have these custom made?

(Barrier hoses are used with R-134 to prevent leaks since the R-134
molecules are smaller than the R-12 molecules, hence can seep though the
stock Vanagon hoses.)
Barrier hoses can also be used with R-12 to contain the now expensive
refrigerant. Back in the day, it was not cost-effective to use them
since R-12 was so cheap.

Todd
'88 Westy