16" x 34" or 34" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Copper Coil Say goodbye to vibrating louvers

Say goodbye to vibrating louvers - this grille ensures a quiet

rust-resistant aluminum

Ideal for Walls & Ceilings: Designed for seamless installation in standard 10” x 8” duct openings

Achieve the perfect airflow with adjustable control by rotating the middle disk

+ Product Details Size - 8"w X 16"h is the size for the duct opening measurement only

16" x 34" or 34" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Copper Coil Say goodbye to vibrating louvers+ Product Details Perfect Fit & Easy Sizing Designed for a 16" x 34" OR 34" X 16" duct opening (measured at the opening), with actual outer dimensions of 18. 5" W x 36. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 15. 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