Black T-Bar Drop Ceiling Grille - Flat Plate Plaque Diffuser - 24" x 24" - 8" Collar Color_Aluminum + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 6" or 6" x 14" duct opening (measured at the opening)

Design – Multi-shutter damper with handle lever for easy opening and closing - screws included

+ Product Details Size – 8" x 24" or 24" x 8" is the size for the duct opening measurement only

+ Product Details Size – 20" x 24" or 24" x 20" is the size for the duct opening measurement only

Built-in tumbler lock and key is provided

Black T-Bar Drop Ceiling Grille - Flat Plate Plaque Diffuser - 24" x 24" - 8" Collar Color_Aluminum + Product Details Perfect Fit+ Product Details Size 24"w X 24"h. These are specially sized to fit into all drop ceilings, also called T Bar systems. Can be hooked up with our "Butterfly Dampers" for precise airflow control. For 8" duct opening High Quality Heavy gauge all steel construction. Installation Location Ceiling. Design These Supply Diffusers with integral round necks are recommended for heating, ventilating and cooling. Round neck to square face construction results in