32" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 12" Round Duct Pipe [Outer Dimensions: 20

[Outer Dimensions: 20

10"w X 6"h Is The Size For The Duct Opening Measurement Only

the actual front end outer dimensions are 7" in diameter

Actual Front End Outer Dimensions Are 5

75" width X 13

32" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 12" Round Duct Pipe [Outer Dimensions: 20+ Product Details Perfect Fit & Easy Sizing Designed for a 32" x 10" OR 10" x 32" duct opening (measured at the opening), with actual outer dimensions of 34. 5" W x 12. 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