22" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w16h16 + Product Details Size –

+ Product Details Size – 32"w X 20"h is the size for the duct opening measurement only

The included eight-tumbler lock and supplied key provide secure access

+ Product Description Maximize your home’s airflow with this premium 2-way air supply grille

+ Product Details Size – 8" x 12" or 12" x 8" is the size for the duct opening measurement only

Actual Filter Size – 33 3/4"w x 33 3/4" x 1"

22" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w16h16 + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 22" x 14" OR 14" x 22" duct opening (measured at the opening), with actual outer dimensions of 24. 5" W x 16. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 21. 75" x 13. 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