16" x 22" or 22" x 16" Cube Core Eggcrate Return Air Grille Color_White 16" Circular Round Aluminum HVAC

16" Circular Round Aluminum HVAC Supply Grille Air Diffuser - With Butterfly Damper - Vent Duct Cover

Actual Filter Size – 21 3/4"w x 29 3/4" x 1"

High diffusion induction rates result in rapid temperature and velocity equalization of the mixed air mass well above the zone of occupancy

Actual Filter Size – 33 3/4"w x 5 3/4" x 1"

Actual Filter Size – 11 3/4"w x 19 3/4" x 1"

16" x 22" or 22" x 16" Cube Core Eggcrate Return Air Grille Color_White 16" Circular Round Aluminum HVAC+ Product Details Size 16" x 22" or 22" x 16" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 75" X 23. 75". High Quality High quality, rust free aluminum construction with smooth finished edges and counter sunk screw holes (screws included); no sharp edges.. Installation Location sidewall and ceiling. Design Cubic core eggcrate design Offers highest airflow efficiency at almost 95%, reducing