26" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w18h18 + Product Details Size –

+ Product Details Size – 12"w X 8"h is the size for the duct opening measurement only

75"H – fits a 10" x 8" duct opening

Its polished pre-finish gloss varnish not only adds to its appeal but also ensures easy installation

providing comfort and control

26" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w18h18 + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 26" x 30" OR 30" x 26" duct opening (measured at the opening), with actual outer dimensions of 28. 5" W x 32. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 25. 75" x 29. 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