6" x 16" or 16" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 18.5"] Powder-Coated Noise free components - no

Noise free components - no vibrating louvers etc

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Actual Filter Size – 23 3/4"w x 19 3/4" x 1"

actual front end outer dimensions are approximately 36 5/8" width X 14 5/8" height

and yet lightweight and easy to handle

6" x 16" or 16" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 18.5"] Powder-Coated Noise free components - no+ Product Details Perfect Fit & Easy Sizing Designed for a 6" x 16" or 16" x 6" duct opening (measured at the opening), with actual outer dimensions of 8. 5" W x 18. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 5. 75" x 15. 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 Made