30" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Return Grille Our innovative adjustable design changes

Our innovative adjustable design changes the game

Designed for optimal airflow and lasting durability

+ Product Details Size – 20"w X 6"h is the size for the duct opening measurement only

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Actual Front End Outer Dimensions Are 34" Width X 10" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

30" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Return Grille Our innovative adjustable design changes+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 10" OR 10" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 12. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 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