34" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Filter Grille with actual outer dimensions of

with actual outer dimensions of 22

Filter Size - 23

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 30" or 30" x 12" duct opening (measured at the opening)

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

designed for optimal airflow and efficiency

34" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Filter Grille with actual outer dimensions of+ 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