22" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter ceiling + Product Description Ventilate your

+ Product Description Ventilate your home or commercial space with our Aluminum Outdoor Weatherproof Louvers

High Quality – Solid rigid steel body for durability and reliability

Ideal for Walls & Ceilings: Designed for seamless installation in standard 12" X 6" duct openings

+ Product Details Size - 28"w X 14"h is the size for the duct opening measurement only

22" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter ceiling + Product Description Ventilate your+ Product Details Perfect Fit & Easy Sizing Designed for a 22" x 10" OR 10" x 22" duct opening (measured at the opening), with actual outer dimensions of 24. 5" W x 12. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 21. 75" x 9. 75" x 1" Premium Airflow Efficiency High performance cube core eggcrate design allows 95% airflow efficiency, reducing energy costs and maximizing HVAC system lifespan. Durable, Rust Free Aluminum