18" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 14in diameter } /* TITLE TEXT */

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ventilating and cooling

High Standard Quality - Every part is hand inspected for quality before it is packaged

+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 8" OR 8" x 24" duct opening (measured at the opening)

+ Product Details Size – 14"w X 24"h is the size for the duct opening measurement only

18" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 14in diameter } /* TITLE TEXT */+ Product Details Perfect Fit & Easy Sizing Designed for a 18" x 12" OR 12" X 18" duct opening (measured at the opening), with actual outer dimensions of 20. 5" W x 14. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 17. 75" x 11. 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