Registered: 11/09/01
Posts: 17
Loc: SanJacinto,CA,UNITED STATES
Offline
Hi there,
Can anyone tell me if Duct Board from the local Heating and A/C supplier is usable as an alternative to 703/705? It appears to have the same density. 2 inches thick and lined with foil on one side. I'm asking cuz I can get it local anytime and the cost is $50 for a 4X10 sheet.
