16" x 30" or 30" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Black getElementById('hvac-product-accordion')

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actual front end outer dimensions are approximately 26 5/8" width X 24 5/8" height

Every grille has a front end frame that will overlap at the wall joint

Weather and Pest Proof – These louvers are especially designed to prevent water from entering your home

please note that the total outer dimensions of the grille measure 7" in diameter

16" x 30" or 30" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Black getElementById('hvac-product-accordion')+ Product Details Perfect Fit & Easy Sizing Designed for a 16" x 30" OR 30" X 16" duct opening (measured at the opening), with actual outer dimensions of 18. 5" W x 32. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 15. 75" x 29. 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