[john]

He needs 1/8 inch to connect to the boost gauge. hard to find coppertubing in 1/8 inch along with poly hose. BTW, the flexible nylon hose will not work for this application. My boost gauge uses the same shit. My gauge came missing the inserts. After searching everywhere (home depot, menards, local hardwar and plumbing stores) I decided I would have to make my own.

if nobody has any extra or a place to get any, I could probly make it work for you James. Stop up at my work sometime and I will see what I can do.