Like Treefork I don't have one of these myself but there is a lot of positive things said about them here on this and other forums - more so than any other brand. I would suggest that you would be hard pressed to go wrong with any of the "CT" (close tolerance) line.
No doubt copper has gone up a lot from where it was in price but I recently bought my 5 foot length of 1/2 inch standard copper water pipe for the equivalent of $16.00 USD. That's not so bad. My suggestion was not meant that he should use only copper pipe, there are lots of other good materials that could be substituted that are even less expensive than copper such as EMT conduit or PVC. Not knowing what "thewarning's" financial resources are like I wished to provide him with home made alternatives that would still allow him to enjoy blow gunning without having to spend as much money. Making your own is always a good way to go if not better in many ways regardless of materials or price.
Nice to see them in stock again ... although they do not have an 48" ones ... These things fly off the shelf.
