Harrington Plastics carries Clear Vinyl Tubing , all kinds of plastic pipe, etc. <BR><BR>My company buys alot of CPVC and PVC fittings for process piping from them. They're always helpful. 1-800 ...

Plus, the tubing is super-cheap and available almost anywhere. Just make sure to measure the space so you don't accidentally buy tubing that's too thick. When you have it, just slide it into place ...