16" x 26" or 26" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Material_Steel Constructed from durable

Constructed from durable

making it a versatile choice for both residential and commercial settings

If your duct opening is 14 inches in diameter

Ideal for Walls & Ceilings: Designed for seamless installation in standard 14" X 12" duct openings

12" x 8" Decorative Wood Air Vent HVAC Duct Cover Grille - Polished Finish Red Oak Wood - 2-Way Air Direction

16" x 26" or 26" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Material_Steel Constructed from durable+ Product Details Perfect Fit & Easy Sizing Designed for a 16" x 26" OR 26" X 16" duct opening (measured at the opening), with actual outer dimensions of 18. 5" W x 28. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 15. 75" x 25. 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