T-Bar Drop Ceiling Grille - Flat Plate Plaque Diffuser - 24" x 24" - 14" Collar Grilles actual front end outer dimensions

actual front end outer dimensions are approximately 27 5/8" width X 12 5/8" height

Actual Filter Size – 31 3/4"w x 21 3/4" x 1"

lightweight aluminum

These are built heavy duty for installation into brick and cement walls

actual front end outer dimensions are approximately 26 5/8" width X 22 5/8" height

T-Bar Drop Ceiling Grille - Flat Plate Plaque Diffuser - 24" x 24" - 14" Collar Grilles actual front end outer dimensions+ 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 14" 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