Drop Ceiling HVAC Supply Grille - For T-Bar Lay-In - 2 Coned - 24" x 24" - For 8" Vent Connection - Black Powder Coated 12"w X 4"h Is The

12"w X 4"h Is The Size For The Duct Opening Measurement Only

+ Product Details Size – 6"w X 6"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 12 5/8" width X 12 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 32" x 24" OR 24" x 32" duct opening (measured at the opening)

Ideal for Walls & Ceilings: Designed for seamless installation in standard 14" X 6" duct openings

Drop Ceiling HVAC Supply Grille - For T-Bar Lay-In - 2 Coned - 24" x 24" - For 8" Vent Connection - Black Powder Coated 12"w X 4"h Is TheDrop 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.