30" x 26" Cube Core Eggcrate Return Air Filter Grille for 1" Filter fixed bar It features an eight-tumbler lock

It features an eight-tumbler lock with a supplied key for secure access

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

Our filter grille latch is easy to use on your fingers and requires no screwdriver to open

Powder-coat finish – smooth

30" x 26" Cube Core Eggcrate Return Air Filter Grille for 1" Filter fixed bar It features an eight-tumbler lock+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 26" OR 26" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 28. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 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