04-06-2017, 10:23 AM
Not sure that cheap tubing in the link is suited for pneumatics. You want polyethylene (most cost effective) or polyurethane (more expensive but much more flexible). Here's a link to a good supplier, prices are hard to beat.
Should you decide to plumb your building, you're gonna want 1/2" for long runs, 1/4" won't handle enough...