14" X 18" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 16 5/8" X 20 5/8"] w20h20 + Product Details Size -

+ Product Details Size - 34"w X 14"h is the size for the duct opening measurement only

+ Product Description Upgrade your HVAC system with our 5" Round Air Vent Supply Grille

border-radius: 8px

85" height

The total outer size of this grille is the listed size plus 2

14" X 18" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 16 5/8" X 20 5/8"] w20h20 + Product Details Size -+ Product Details Size 14"w X 18"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 16 5 8" width X 20 5 8" height Actual Filter Size 13 3 4"w x 17 3 4" x 1" High Quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location Sidewall and ceiling Design Removable door face for easy filter change & cleaning uses a 1" thick filter.