Return Air Filter Grille with Plenum Box - 24 x 24 T-Bar Lay-in Drop Ceiling 18in diameter + Product Details Size -

+ Product Details Size - 14"w X 4"h is the size for the duct opening measurement only

+ Product Details Size - 22"w X 34"h X 2"d (for duct opening measurement only)

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+ Product Details Size - 30"w X 8"h Is The Size For The Duct Opening Measurement Only

Easy Unrestricted Air Flow For Your Home HVAC System

Return Air Filter Grille with Plenum Box - 24 x 24 T-Bar Lay-in Drop Ceiling 18in diameter + Product Details Size -For 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