12" x 12" - Corner Direction Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover 6" Diameter Actual Filter Size – 23

Actual Filter Size – 23 3/4"w x 11 3/4" x 1"

Drop Ceiling HVAC Supply Grille - For T-Bar Lay-In - 3 Coned - 24" x 24" - For 8" Vent Connection - Black

+ Product Details Size – 8" x 22" or 22" x 8" is the size for the duct opening measurement only

+ Product Details Size - 30"w X 28"h is the size for the duct opening measurement only

+ Product Details Size – 8"w X 26"h is the size for the duct opening measurement only

12" x 12" - Corner Direction Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover 6" Diameter Actual Filter Size – 23+ Product Details Size 12" X 12" is the size for the duct opening measurement only, actual front end outer dimensions are 3". Design Equipped with lever for full airflow control; back blades made of black plastic for reduced air noise and discreet appearance; "Opposing" back blades, ensuring they don't overlap, provide precise damper control and superior air dispersion. High Quality Aluminum The premium durable aluminum will never rust and it will