30" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_R-4.2 Yellow + Product Details Size –

+ Product Details Size – 12"w X 24"h is the size for the duct opening measurement only

this grill will provide the design aesthetic you're looking for

providing the flexibility to match specific ventilation requirements or personal comfort levels

Our Aluminum Ceiling Diffuser is not only a design marvel but also a practical choice for your HVAC system

+ Product Details Size – 22" x 22" is the size for the duct opening measurement only

30" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_R-4.2 Yellow + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 32" OR 32" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 34. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 75" x 31. 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