Rectangular Duct

RECTANGULAR 3" ALUMICORE SUPPLY DUCT.

3" Alumicore rectangular supply duct is available with R-8.0 and R-4.2 insulation, UL 181 rated and designed to fit through the tightest spaces. The inner core is manufactured using two 60 micron layers of aluminum encapsulating two layers of 30 micron polyester and wire coils. Rectangular supply duct easily connects to 3 " supply outlets and delivers full CFM capacity.