26" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 3-Way or 4-Way + Product Details Size -

+ Product Details Size - 10"w X 14"h is the size for the duct opening measurement only

no professional tools needed

+ Product Details Size – 8"w X 28"h is the size for the duct opening measurement only

Actual Filter Size – 21 3/4"w x 35 3/4" x 1"

Installation Location – Wall or door mount - door thickness up to 32mm - anodised finish - smooth & beautiful

26" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 3-Way or 4-Way + Product Details Size -+ Product Details Perfect Fit & Easy Sizing Designed for a 26" x 16" OR 16" x 26" duct opening (measured at the opening), with actual outer dimensions of 28. 5" W x 18. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 25. 75" x 15. 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