12" x 28" or 28" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter flat stamped steel Simplified Installation: Our Radial Damper

Simplified Installation: Our Radial Damper ensures easy setup

+ Product Details Size – 16" x 32" or 32" x 16" is the size for the duct opening measurement only

Great emphasis has been invested in the design of this product to prevent it from kinking in sharp bends & turns and to hold steady and at full diameter in all applications

With HVAC Premium you get an extra measure of quality that will be visible to your family members and house guests

Adjustable airflow control – Adjustable airflow control: The system allows users to customize the amount of air supply

12" x 28" or 28" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter flat stamped steel Simplified Installation: Our Radial Damper+ Product Details Perfect Fit & Easy Sizing Designed for a 12" x 28" or 28" x 12" duct opening (measured at the opening), with actual outer dimensions of 14. 5" W x 30. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 11. 75" x 27. 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