10" x 14" or 14" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 12.5" X 16.5"] w26h26 Adjustable airflow control – Adjustable Product Details Size 14 Material_Anodized Aluminum LR164

Adjustable airflow control – Adjustable airflow control: The system allows users to customize the amount of air supply

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 12" OR 12" X 16" duct opening (measured at the opening)

adds an extra layer of protection

Actual Filter Size – 15 3/4"w x 25 3/4" x 1"

75" Deep - Will Fit All Garrage Doors - Insulated And Non Insulated Garrage Doors [The Hole In The Door SHould Be: 15 ¼ x 9 ¾]

10" x 14" or 14" x 10" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum White [Outer Dimensions: 12.5" X 16.5"] w26h26 Adjustable airflow control – Adjustable Product Details Size 14 Material_Anodized Aluminum LR164 Adjustable airflow control – Adjustable airflow control: The system allows users to customize the amount of air supply + Product Details Perfect Fit & Easy Sizing Designed for a 16" x 12" OR 12" X 16" duct opening (measured at the opening)