I bought a 14" 3/16 wall x 10' tube from a HVAC dealer. They use it for underground heat ducts. I have some photos of mine at http://www.thebeachcats.com. Here is the link to the page
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Jack Hoying
Prindle 18
1990 H16 (for sale)
Fort Loramie, Ohio

Last edited by jmhoying; 06/28/03 06:51 PM.
Jack Hoying Fort Loramie, Ohio