6" X 18" or 18" x 6" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 7.75 X 19.75] 5" Diameter Actual Filter Size – 25 Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

Actual Filter Size – 25 3/4"w x 33 3/4" x 1"

+ Product Details Size - 26"w X 26"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 32" OR 32" X 14" duct opening (measured at the opening)

actual front end outer dimensions are approximately 16 5/8" width X 12 5/8" height

+ Product Details Size & Compatibilty - The 12" to 6" round metal pipe reducer & increaser 30 gauge is compatible with duct 12" to 6"

6" X 18" or 18" x 6" Heavy Duty Floor Grille Fixed Blades Air Grille Brown [Outer Dimensions: 7.75 X 19.75] 5" Diameter Actual Filter Size – 25 Compatible With Duct 7in Applications This sheet metal DDAG A 1212 Actual Filter Size – 25 3 4"w x 33 3 4" x 1" + Product Details Size 26"w X 26"h is the size for the duct opening measurement only