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actual front end outer dimensions are 17" Width X 17" Height
+ Product Details Size – 16" x 18" or 18" x 16" is the size for the duct opening measurement only
Ideal for Walls & Ceilings: Designed for seamless installation in standard 20" X 4" duct openings
you can quickly adjust airflow for year-round comfort
+ Product Details Size – 22"w X 22"h is the size for the duct opening measurement only
30" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 6" Diameter actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 20" OR 20" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 22. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 75" x 19. 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
US$ 150.00
US$ 80.00