Looking for any and all glass wall tube / floor tube insulators, such as in the picture above. Especially interested in the following sizes:

- 2.5" length, 0.75" bore

- 3" length, 0.5" bore

- 3" length, 1.25" bore

- 3.5" length, 1" bore

- 4" length, 1" bore

- 4.5" length, 1" bore

- 6" length, 1.25" bore

Please see my web site for more photos and specific sizes:

http://www.hemingray.info/database/floortubes.html