Black T-Bar Drop Ceiling Grille - Flat Plate Plaque Diffuser - 24" x 24" - 10" Collar Stick on Side Take Off + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 26" OR 26" x 20" duct opening (measured at the opening)

Aluminum Return Grille Spec Sheet

+ Product Details Size - 28"w X 26"h X 2"d (for duct opening measurement only)

+ Product Details Size – 34"w X 32"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 16" OR 16" x 22" duct opening (measured at the opening)

Black T-Bar Drop Ceiling Grille - Flat Plate Plaque Diffuser - 24" x 24" - 10" Collar Stick on Side Take Off + Product Details Perfect Fit+ 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