I'm not sure what the hubub is here, but I threaded regular 3/8" brass nipple fittings on the back of the IP check valve from a local plumbing supplier and ran a hose. It isn't braided. It isn't stainless. But in a pinch I can replace it with vinyl see through for troubleshooting. It's been working fine. With no leaks.
The braided one is nice looking though.
Paul
The difference is with the Jic fittings you have a hose that is easily removable without distorting anything that might effect the seal of teh hose next time you put it back on, it is reusable an indefinite number of times without messing it up.
With barb fittings and clear hose, you are back to loosening clamps and popping hose off to get the fittings off and you can't do that too many times before teh hose cracks.