T-Bar Drop Ceiling Grille - Flat Plate Plaque Diffuser - 24" x 24" - 10" Collar w34h34 + Product Details Size –

+ Product Details Size – 24"w X 24"h

actual front end outer dimensions are approximately 26 5/8" width X 10 5/8" height

+ Product Details Size - 16"w X 30"h is the size for the duct opening measurement only

By simply measuring the width or the length of the vent

T-Bar Drop Ceiling Grille - Flat Plate Plaque Diffuser - 24" x 24" - 10" Collar w34h34 + 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 10" 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