6" x 10" or 6" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 12.5"] 6" Round Duct Pipe Actual Filter Size – 29

Actual Filter Size – 29 3/4"w x 15 3/4" x 1"

Its professional design and solid construction make it the perfect solution for safeguarding your thermostat against unwanted access

+ Product Description Introducing HVAC Premium's Aluminum Adjustable Return Grill – the key to enhanced air control and energy efficiency

Pre-flared ends with nuts are for simple and easy installation

6" x 10" or 6" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 12.5"] 6" Round Duct Pipe Actual Filter Size – 29+ Product Details Perfect Fit & Easy Sizing Designed for a 6" x 10" or 10" x 6" duct opening (measured at the opening), with actual outer dimensions of 8. 5" W x 12. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 5. 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 Made