12" X 24" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included * [Outer Dimensions: 14 5/8" X 26 5/8"] w6h6 actual front end outer dimensions

actual front end outer dimensions are approximately 21 5/8" width X 31 5/8" height

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

Installation Location – Sidewall and ceiling

Produced in accordance with ISO 9001-2008 Quality Management System

How to Measure Your Vent Hole Before Ordering a Grille

12" X 24" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included * [Outer Dimensions: 14 5/8" X 26 5/8"] w6h6 actual front end outer dimensions+ Product Details Size 12"w X 24"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 14 5 8" width X 26 5 8" height Actual Filter Size 11 3 4"w x 23 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.