6" x 34" or 34" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 36.5"] White 12" x 2" Decorative Wood

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

Actual Filter Size – 19 3/4"w x 13 3/4" x 1"

+ Product Details Size – 18"w X 8"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 14" or 14" x 8" duct opening (measured at the opening)

40" x 16" Aluminum Spiral Duct Air Vent Grille Cover - Fully Adjustable Double Deflection HVAC Air Supply

6" x 34" or 34" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 36.5"] White 12" x 2" Decorative Wood+ Product Details Perfect Fit & Easy Sizing Designed for a 6" x 34" or 34" x 6" duct opening (measured at the opening), with actual outer dimensions of 8. 5" W x 36. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 5. 75" x 33. 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