14" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 16 5/8" X 22 5/8"] Color_R-4.2 Yellow actual front end outer dimensions

actual front end outer dimensions are approximately 16 5/8" width X 28 5/8" height

you can watch this informative video tutorial: How to Measure Your Vent Hole Before Ordering a Grille

order a 20x14 grille

+ Product Spec Sheet Corner Baseboard Grille Spec Sheet

14" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 16 5/8" X 22 5/8"] Color_R-4.2 Yellow actual front end outer dimensions+ Product Details Size 14"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 16 5 8" width X 22 5 8" height Actual Filter Size 13 3 4"w x 19 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.