28" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter rg1010 10" x 6" Decorative Wood

10" x 6" Decorative Wood Air Vent HVAC Duct Cover Grille - Polished Finish Red Oak Wood - 2-Way Air Direction

75"H – fits a 16" X 12" duct opening

+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 20" OR 20" x 24" duct opening (measured at the opening)

75"H – fits a 18" X 10" duct opening

+ Product Details Size - The listed 12" diameter refers specifically to the size of the duct opening

28" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter rg1010 10" x 6" Decorative Wood+ Product Details Perfect Fit & Easy Sizing Designed for a 28" x 30" OR 30" x 28" duct opening (measured at the opening), with actual outer dimensions of 30. 5" W x 32. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 27. 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