6" x 32" or 32" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 32.5"] Color_White + Product Details Size -

+ Product Details Size - 20"w X 24"h is the size for the duct opening measurement only

+ Product Details Size – 8"w X 12"h is the size for the duct opening measurement only

Quality Packaging – carefully shrink wrapped with cardboard backing to prevent damage in shipment

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

with actual outer dimensions of 16

6" x 32" or 32" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 32.5"] Color_White + Product Details Size -+ Product Details Perfect Fit & Easy Sizing Designed for a 6" x 32" or 32" x 6" duct opening (measured at the opening), with actual outer dimensions of 8. 5" W x 34. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 5. 75" x 31. 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