36" x 28" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 14in diameter High Quality Copper Coil Meets/Beats

High Quality Copper Coil Meets/Beats ASTM B280 Standard for Air Conditioning and Refrigeration (Made From C12200 - 99

+ Product Details Size – 22"w X 32"h is the size for the duct opening measurement only

+ Product Details Size – 34" x 34" is the size for the duct opening measurement only

75"H – fits a 10" x 8" duct opening

36" x 28" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 14in diameter High Quality Copper Coil Meets/Beats+ Product Details Perfect Fit & Easy Sizing Designed for a 36" x 28" OR 28" x 36" duct opening (measured at the opening), with actual outer dimensions of 38. 5" W x 30. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 35. 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