Description
actual front end outer dimensions are approximately 21 5/8" width X 31 5/8" height
75"H – fits a 30" X 6" duct opening
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+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 16" or 16" x 12" duct opening (measured at the opening)
+ Product Details Size – 20"w X 30"h is the size for the duct opening measurement only
16" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w36h36 actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 16" x 6" OR 6" X 16" duct opening (measured at the opening), with actual outer dimensions of 18. 5" W x 8. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 15. 75" x 5. 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 Made