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Ships within 48 hours · Estimated delivery Sep 11 - Sep 16
actual front end outer dimensions are approximately 32 5/8" width X 18 5/8" height
+ Product Details Size – 20"w X 16"h is the size for the duct opening measurement only
with actual outer dimensions of 22
Actual Filter Size – 27 3/4"w x 9 3/4" x 1"
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12" x 30" or 30" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w26h26 actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 12" x 30" or 30" x 12" duct opening (measured at the opening), with actual outer dimensions of 14. 5" W x 32. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 11. 75" x 29. 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