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David Etcell
FDH - Flexible Duct Hangers - "The right way to hang duct" 
- ezinearticles.com Article by, David Etcell. - Author. March 2009. 
Click here to read it . . .  


A & M University
Static Pressure Losses in 6”, 8”, and 10” Non-Metallic Flexible Duct 
Kevin Weaver, Charles Culp, Texas A & M University
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James M Fricker
Article report from Ecolibrium - AIRAH Journal, March 2009.
"Testing of heat losses from flexible duct" (fricker.net.au)
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