36" x 26" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w12h12 Looks Like It Was Just

Looks Like It Was Just Waxed

14" Diameter Is The Size For The Duct Opening Measurement Only

Metal Fab - A brand you can trust

Ideal for Walls & Ceilings: Designed for seamless installation in standard duct openings

No Sharp Surface Edges

36" x 26" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w12h12 Looks Like It Was Just+ Product Details Perfect Fit & Easy Sizing Designed for a 36" x 26" OR 26" x 36" duct opening (measured at the opening), with actual outer dimensions of 38. 5" W x 28. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 35. 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