16" X 30" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 18 5/8" X 32 5/8"] w16h16 + Product Details Perfect Fit 190RF 10X20 FBA crafted from heavy gauge Compatible With Duct 7in

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

and durable finish that resists scratches and maintains a clean

High Quality – High-quality steel with counter-sunk screw holes (screws included) and no sharp edges

+ Product Details Size - 24"w X 16"h is the size for the duct opening measurement only

unrestricted airflow with a precise 50° angled design

16" X 30" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 18 5 8" X 32 5 8"] w16h16 + Product Details Perfect Fit 190RF 10X20 FBA crafted from heavy gauge Compatible With Duct 7in + Product Details Perfect Fit & Easy Sizing Designed for a 12" x 12" duct opening (measured at the opening) and durable finish that resists scratches and maintains a clean