12" x 8" or 8" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 14.5" X 10.5"] White Secure Locking Mechanism – Features

Secure Locking Mechanism – Features a permanently attached eight-tumbler lock with a supplied key for added security

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+ Product Details Size – 12" x 14" or 14" x 12" is the size for the duct opening measurement only

+ Product Details Size - 30"w X 24"h X 2"d (for duct opening measurement only)

14" x 8" Decorative Wood Air Vent HVAC Duct Cover Grille - Polished Finish Red Oak Wood - 2-Way Air Direction

12" x 8" or 8" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 14.5" X 10.5"] White Secure Locking Mechanism – Features+ Product Details Perfect Fit & Easy Sizing Designed for a 12" x 8" or 8" x 12" duct opening (measured at the opening), with actual outer dimensions of 14. 5" W x 10. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 11. 75" x 7. 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