bohica2xo wrote:Barrier hose will be a snug fit, but it should be anyway. A little lubrication is a good plan for sliding them on.
If you can't find a loose ferrule with the correct dimensions, you can use clamps. We have covered this before:
Pay attention to conditioning the old R12 fittings to use the new barrier hose as well. Covered in the threads above.
Lots of good info above and in those referenced threads - makes sense to smooth out any sharp edges on the old fittings when using barrier hose on them. Might not be clear in the picture I posted, but those are not really barbs on those fittings - they look to me more like machined O-ring grooves, though when I got the hose off there was no sign of any O-rings ever being in there.
Another thought I had was to use a brazed/weld on adapter fitting (beadlock on one end, braze fitting to AL tube on other) on these. Given the dimensions I listed in the previous posts, would the brazed adapters fit over the AL tubing?