30" x 34" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible With Duct 6in Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 16" X 8" duct openings

Featuring a multi-shutter damper with an easy-access lever

of up to 300m3/h

look no further than HVAC Premium

30" x 34" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible With Duct 6in Ideal for Walls & Ceilings:+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 34" OR 34" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 36. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 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