32" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w16h16 Actual Filter Size – 27

Actual Filter Size – 27 3/4"w x 11 3/4" x 1"

R Value Rating of Insulation - R3

+ Product Details Size - 8"w X 16"h is the size for the duct opening measurement only

+ Product Details Size - 4"w X 28"h is the size for the duct opening measurement only

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32" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w16h16 Actual Filter Size – 27+ Product Details Perfect Fit & Easy Sizing Designed for a 32" x 8" OR 8" x 32" duct opening (measured at the opening), with actual outer dimensions of 34. 5" W x 10. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 31. 75" x 9. 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