24" x 18" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Fixed Blades with Damper they seamlessly integrate into your

they seamlessly integrate into your space

ensuring consistent and efficient air distribution throughout your space

color: #111

40"w X 16"h Is The Size For The Duct Opening Measurement Only

Ideal for Walls & Ceilings: Designed for seamless installation in standard 20" X 18" duct openings

24" x 18" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Fixed Blades with Damper they seamlessly integrate into your+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 18" OR 18" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 20. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 75" x 17. 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