Return Air Pathway relieves pressure build up in the home by allowing the movement of air from one room to the next while dampening sound and light transmission. Features Economical Easy Installation No mechanical parts Dampens light and sound Compliant with National and state building codes Passive Return Air Pathway for existing walls. R/O 12 x 12 in. Existing construction Includes two finished white grilles and sound/light baffle. 2-piece galvanized frame. Dimension – 8 x 15 x 15 in. Item Weight – 7 lbs.
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