16" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 2-Way /* Slightly darker color for

/* Slightly darker color for better readability */ }

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

'block' : 'none'

Can be hooked up with our "Butterfly Dampers" for precise airflow control

complete with a set of sponge gasket and mounting frame

16" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 2-Way /* Slightly darker color for+ Product Details Perfect Fit & Easy Sizing Designed for a 16" x 12" OR 12" X 16" duct opening (measured at the opening), with actual outer dimensions of 18. 5" W x 14. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 15. 75" x 11. 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