Black T-Bar Drop Ceiling Grille - Flat Plate Plaque Diffuser - 24" x 24" - 6" Collar w20h20 + Product Details Size -

+ Product Details Size - 24"w X 18"h is the size for the duct opening measurement only

High quality – high quality solid stamped steel with counter-sunk screw holes (screws included) and no sharp edges

75" Width X 5

Design – Removable face for cleaning and access to damper - wooden damper for airflow shutoff control

Black T-Bar Drop Ceiling Grille - Flat Plate Plaque Diffuser - 24" x 24" - 6" Collar w20h20 + Product Details Size -+ 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 6" 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