Drop Ceiling HVAC Supply Grille - For T-Bar Lay-In - 2 Coned - 24" x 24" - For 12" Vent Connection - Black Color_R-4.2 Yellow + Product Details Size -

+ Product Details Size - 14"w X 16"h X 2"d (for duct opening measurement only)

+ Product Details Size - 24"w X 32"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 22" OR 22" x 20" duct opening (measured at the opening)

Perfect for sidewall or ceiling installation

Drop Ceiling HVAC Supply Grille - For T-Bar Lay-In - 2 Coned - 24" x 24" - For 12" Vent Connection - Black Color_R-4.2 Yellow + Product Details Size -Drop 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 cielings, 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.