Return Air Filter Grille with Plenum Box - 24 x 24 T-Bar Lay-in Drop Ceiling Height_12in actual front end outer dimensions

actual front end outer dimensions are approximately 23

actual front end outer dimensions are approximately 10 5/8" width X 16 5/8" height

Every access panel has a front end frame

+ Product Details 16"w X 16"h is the size for the drywall opening measurement only

Return Air Filter Grille with Plenum Box - 24 x 24 T-Bar Lay-in Drop Ceiling Height_12in actual front end outer dimensionsFor Lay In T Bar Ceiling High Quality Steel Construction Easy Unrestricted Air Flow For Your HVAC System 50 angled to provide maximum airflow 1 2" Spaced Stamped Louver Face Concealed Hinges and Latches to achieve a clean and modern look R6 Fiberglass Back Plenum accepts 6" to 18" Round Spin in Collars or Start Collars (not included) Accepts 1" disposable filter (not included) Recommended Size: 20x20x1 QUALITY PACKAGING & SATISFACTION GUARANTEED