26" x 28" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Round Damper Ring + Product Details Size –

+ Product Details Size – 34"w X 24"h is the size for the duct opening measurement only

with actual front end outer dimensions of 7"

With precise measurements and easy installation

actual front end outer dimensions are approximately 32 5/8" width X 8 5/8" height

Made from high-grade stamped steel

26" x 28" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Round Damper Ring + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 26" x 28" OR 28" x 26" duct opening (measured at the opening), with actual outer dimensions of 28. 5" W x 30. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 25. 75" x 27. 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