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Thread: Spider system duct
02-15-2005, 08:48 AM #1
Spider system under a house with flex trunk lines.
Iknow a tapered box will work but I would like to know
if I make a square box and off set the collars in the
end of the box would this work as well and be quiter
or does someone have a better Idea With a design of
a box that will work.