32" x 18" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w25h25 is fireproof and ensures efficient

is fireproof and ensures efficient thermal performance

+ Product Details Size – 24" Wooden Corner Baseboard Grille

75"H – fits a 6" X 4" duct opening

5"w X 12"h]

actual front end outer dimensions are 7" diameter

32" x 18" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w25h25 is fireproof and ensures efficient+ Product Details Perfect Fit & Easy Sizing Designed for a 32" x 18" OR 18" x 32" duct opening (measured at the opening), with actual outer dimensions of 34. 5" W x 20. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 31. 75" x 17. 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