34" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter RV Mobile Home + Product Details Size -

+ Product Details Size - 10"w X 16"h is the size for the duct opening measurement only

16" Diameter Is The Size For The Duct Opening Measurement Only

+ Product Details Size – 24" x 34" or 34" x 24" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 24 5/8" width X 30 5/8" height

Ideal for Walls & Ceilings: Designed for seamless installation in standard 10" X 8" duct openings

34" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter RV Mobile Home + Product Details Size -+ Product Details Perfect Fit & Easy Sizing Designed for a 34" x 14" Or 14" x 34" duct opening (measured at the opening), with actual outer dimensions of 36. 5" W x 16. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 33. 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