Return Air Filter Grille with Plenum Box - 24 x 24 T-Bar Lay-in Drop Ceiling 3-Way or 4-Way + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 20" OR 20" X 14" duct opening (measured at the opening)

+ Product Details Size & Compatibility – The size of galvanized sheet metal straight floor boot is 6" X 6" X 6"

GPH @ 1 FT: - 5

actual front end outer dimensions are approximately 32 5/8" width X 28 5/8" height

Actual Filter Size – 31 3/4"w x 11 3/4" x 1"

Return Air Filter Grille with Plenum Box - 24 x 24 T-Bar Lay-in Drop Ceiling 3-Way or 4-Way + Product Details Perfect FitFor 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