22" x 28" or 28" x 22" Cube Core Eggcrate Return Air Grille White Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 16" X 12" duct openings

+ Product Details Size – 16"w X 26"h is the size for the duct opening measurement only

no professional tools needed

12" x 2" Decorative Wood Air Vent HVAC Duct Cover Grille - Polished Finish Red Oak Wood - 2-Way Air Direction

75"H – fits a 24" X 4" duct opening

22" x 28" or 28" x 22" Cube Core Eggcrate Return Air Grille White Ideal for Walls & Ceilings:+ Product Details Size 22" x 28" or 28" x 22" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 23. 75" X 29. 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