16 x 16 " Ceiling Box made of Galvanized Sheet Metal.(Blank Box cut your own hole size)
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16x16" Ceiling box made of galvanized sheet metal 4" depth and comes with a connecting metal collar for attachment the ductwork.
The ceiling box is nailed into the attic rafters and plastered or dry walled around the 3/4" flange called plaster ground.
Room registers are attach to the metal ceiling box.
We strongly recommend using bar-type or curve blade registers for up to 50% more air flow and no air noise.
See our Register & Grilles section.
Ceiling Boxes are used for all types of ceiling applications.
Includes 1-1/2" plaster ground completely around the box for drywall applications.
Sheet Metal Gauge: 30