30" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 14in diameter 2 recessed screw holes on

2 recessed screw holes on each side with screws included

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Traditional HVAC systems were designed for cold air

+ Product Details Size – 28"w X 6"h is the size for the duct opening measurement only

30" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 14in diameter 2 recessed screw holes on+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 22" OR 22" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 24. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 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