14" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Width_20in accordion-title { font-size: 18px

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7/8" Insulated Copper Coil Line - Seamless Pipe Tube for HVAC

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actual front end outer dimensions are approximately 21 5/8" width X 31 5/8" height

+ Product Details Size - 18"w X 18"h X 2"d (for duct opening measurement only)

14" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Width_20in accordion-title { font-size: 18px+ Product Details Perfect Fit & Easy Sizing Designed for a 14" x 12" or 12" x 14" duct opening (measured at the opening), with actual outer dimensions of 16. 5" W x 14. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 13. 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