28" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible With Duct 8in + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 32" OR 32" X 16" duct opening (measured at the opening)

All year round solution - Get the hot air out during the Summer Months

Close For Winter To Prevent The Cold

Design – 180 degrees double direction adjustable - fins are manually adjustable individually for optimal air distribution

28" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible With Duct 8in + Product Details Perfect Fit+ Product Details Perfect Fit & Easy Sizing Designed for a 28" x 8" OR 8" x 28" duct opening (measured at the opening), with actual outer dimensions of 30. 5" W x 10. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 27. 75" x 5. 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