16" x 24" or 24" x 16" Cube Core Eggcrate Return Air Grille Aluminum Bar + Product Details Size - Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size - 8"w X 28"h is the size for the duct opening measurement only

Actual Front End Outer Dimensions Are 16" Diameter

+ Product Details Size - 36"w X 32"h is the size for the duct opening measurement only

polished look

+ Product Details Perfect Fit & Easy Sizing - Designed for a 34" x 34" duct opening (measured at the opening)

16" x 24" or 24" x 16" Cube Core Eggcrate Return Air Grille Aluminum Bar + Product Details Size Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size 8"w X 28"h is the size for the duct opening measurement only Actual Front End Outer Dimensions Are 16" Diameter