32" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_Red Oak Wood Cubic core eggcrate design has

Cubic core eggcrate design has the highest rate of airflow efficiency

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actual front end outer dimensions are approximately 22 5/8" width X 36 5/8" height

+ Product Details Size – 28"w X 6"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 14 5/8" width X 14 5/8" height

32" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_Red Oak Wood Cubic core eggcrate design has+ Product Details Perfect Fit & Easy Sizing Designed for a 32" x 14" OR 14" x 32" duct opening (measured at the opening), with actual outer dimensions of 34. 5" W x 16. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 31. 75" x 13. 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