Drop Ceiling HVAC Supply Grille - For T-Bar Lay-In - 2 Coned - 24" x 24" - For 8" Vent Connection - Black fixed bar 9% Pure Copper meeting ASTM

9% Pure Copper meeting ASTM B280 standards

The first number in a grille size represents the width

+ Product Details Size - 22"w X 24"h X 2"d (for duct opening measurement only)

commercial

+ Product Details Size - 30"w X 8"h is the size for the duct opening measurement only

Drop Ceiling HVAC Supply Grille - For T-Bar Lay-In - 2 Coned - 24" x 24" - For 8" Vent Connection - Black fixed bar 9% Pure Copper meeting ASTMDrop Ceiling HVAC Supply Grille For T Bar Lay In 2 Coned 24" x 24" For 6" Vent Connection Black These are specially sized to fit into all drop ceilings, 24"x 24", also called T Bar systems. Can be hooked up with our "Butterfly Dampers" for precise airflow control Why HVAC Premium? You may think of grilles and registers as a generic component of the ventilation system in your house. But they are also the most visible representation of you air system.