14" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Condensate Pump margin-right: 8px

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+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 30" OR 30" X 16" duct opening (measured at the opening)

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you may now order this galvanized sheet metal end boot for a reasonable price

+ Product Details Size & Compatibility – The size of the side round ceiling box is 8" X 8" X 8" and it is compatible with duct 8"

14" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Condensate Pump margin-right: 8px+ 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