12" x 30" or 30" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Fixed Blades with Damper the actual front end outer

the actual front end outer dimensions are 7" in diameter

+ Product Details Size – 25"w X 12"h is the size for the duct opening measurement only

These grilles and registers give you an extra measure of quality that you can point out to your family members and house guests

+ Product Details Size – 34"w X 26"h is the size for the duct opening measurement only

Design – removable door/face for easy filter change & cleaning - uses a 1" thick filter

12" x 30" or 30" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Fixed Blades with Damper the actual front end outer+ Product Details Perfect Fit & Easy Sizing Designed for a 12" x 30" or 30" x 12" duct opening (measured at the opening), with actual outer dimensions of 14. 5" W x 32. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 11. 75" x 29. 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