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Old 09-22-2009, 03:07 PM
Brian Gingras
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[quote=Charles Friedman;82430]
Originally Posted by Brian Gingras View Post
no spiral, these are solid bar type TW.

Brian, Not to split hairs, but I think the TW in your bar type, means Thin Walled. Mine are TW as well and I can see all the way thru, to the other side of the furnace.
yes thin wall, high density, solid as in not spiral type, but yes they are a tube.
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