Black T-Bar Drop Ceiling Grille - Flat Plate Plaque Diffuser - 24" x 24" - 10" Collar Color_Red Oak Wood 25" X 6" and it

25" X 6" and it is compatible with duct 6"

+ Product Details Size & Compatibilty - The 4" to 3" round metal pipe reducer & increaser 30 gauge is compatible with duct 4" to 3"

Working Accordion

+ Product Details Size – 40"w X 20"h is the size for the duct opening measurement only

Experience noise-free airflow and a healthier environment thanks to our grille's innovative design

Black T-Bar Drop Ceiling Grille - Flat Plate Plaque Diffuser - 24" x 24" - 10" Collar Color_Red Oak Wood 25" X 6" and it+ 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