24" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 8in diameter It features an eight-tumbler lock

It features an eight-tumbler lock with a supplied key for secure access

+ Product Description Upgrade your HVAC system with a high-quality aluminum return grille designed for a clean

Actual Filter Size – 35 3/4"w x 25 3/4" x 1"

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24" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 8in diameter It features an eight-tumbler lock+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 14" OR 14" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 16. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 75" x 13. 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