30" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w25h25 Plain Ends - Gives you

Plain Ends - Gives you the freedom to cut and flare at your own project needs

Pressure Rating: 2100 to 7000 PSI

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

+ Product Details Size – 32"w X 34"h is the size for the duct opening measurement only

[Outer Dimensions: 22

30" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w25h25 Plain Ends - Gives you+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 20" OR 20" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 22. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 75" x 19. 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