34" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Filter Grille High Quality – High quality

High Quality – High quality solid stamped steel with counter-sunk screw holes (screws included) and no sharp edges

Filter Size - 23

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Ideal for Walls & Ceilings: Designed for seamless installation in standard 16" X 10" duct openings

34" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Filter Grille High Quality – High quality+ Product Details Perfect Fit & Easy Sizing Designed for a 34" x 22" Or 22" x 34" duct opening (measured at the opening), with actual outer dimensions of 36. 5" W x 22. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 33. 75" x 21. 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