I've found them on local craigslist for as low as $20

 

You members do realize this thread is 7 years old, should be in the second grade by now. Where do you find em? I guess if you find them relevant they're still valuable! Looking for Z-tubes, try our Marketplace under private classified for a used one s/n be over $20=
Gary

 

The guy who bumped it after 7 years was a bit much but it doesn't invalidate the posts that came after

 

7 years later people still talking about the z tube....amazing

 

Almost 5 years on here and you're still talking about said tube.....