32" x 26" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Material_Aluminum + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 32" x 36" Or 36" x 32" duct opening (measured at the opening)

Ideal for Walls & Ceilings: Designed for seamless installation in standard 14" X 14" duct openings

+ Product Details Size - 22"w X 14"h X 2"d (for duct opening measurement only)

actual front end outer dimensions are approximately 14 5/8" width X 22 5/8" height

75"H – fits a 6" X 4" duct opening

32" x 26" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Material_Aluminum + Product Details Perfect Fit+ Product Details Perfect Fit & Easy Sizing Designed for a 32" x 26" OR 26" x 32" duct opening (measured at the opening), with actual outer dimensions of 34. 5" W x 28. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 31. 75" x 25. 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