Black T-Bar Drop Ceiling Grille - Flat Plate Plaque Diffuser - 24" x 24" - 8" Collar 3" Round Duct Pipe preventing tampering and maintaining consistent

preventing tampering and maintaining consistent temperature settings

actual front end outer dimensions are approximately 21" width X 21" height

+ Product Details Size - 12"w X 18"h is the size for the duct opening measurement only

finished in antique brass

insulation tape

Black T-Bar Drop Ceiling Grille - Flat Plate Plaque Diffuser - 24" x 24" - 8" Collar 3" Round Duct Pipe preventing tampering and maintaining consistent+ 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