6" x 14" or 14" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 16.5"] Brown + Product Details Size – 4" Round Duct Pipe Product Details Size The SHEASC10W1-HP

+ Product Details Size – 18" x 22" or 22" x 18" is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 14" or 14" x 10" duct opening (measured at the opening)

+ Product Description Introducing the Louver Floor Register from HVAC Premium – your gateway to enhanced home comfort and style

875" width X 21

Actual Filter Size – 11 3/4"w x 11 3/4" x 1"

6" x 14" or 14" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum White [Outer Dimensions: 8.5" X 16.5"] Brown + Product Details Size – 4" Round Duct Pipe Product Details Size The SHEASC10W1 HP + Product Details Size – 18" x 22" or 22" x 18" is the size for the duct opening measurement only + Product Details Perfect Fit & Easy Sizing Designed for a 10" x 14" or 14" x 10" duct opening (measured at the opening)