Awesome @RL6723 . If you could provide some pictures that would be great.No problem, its pretty simple, the fittings ypu need are John Guest 1/4" quick connect to 1/8" NPTF. You unscrew the grey caps that come with the DOS. Once you remove the caps, there will be a small cone shaped nipple after the threads. Using a sharp razor blade cut that about 1/2 way off. If you dont cut this, the cone will interfere with the RO tubing seating all the way. Once you cut those down, all you do is put some teflon tape and thread the new John Guest fitting on.
I can take some pictures of the process tomorrow for you
Mitch