Perforated Return Air Filter Grille with Plenum Box - 24 x 24 T-Bar Lay-in Drop Ceiling Height_24in + Product Details Size -

+ Product Details Size - 16"w X 34"h is the size for the duct opening measurement only

ceiling height)

actual front end outer dimensions are approximately 28 5/8" width X 14 5/8" height

+ Product Details Size - 30"w X 10"h is the size for the duct opening measurement only

+ Product Details Size - The listed 12" diameter refers specifically to the size of the duct opening

Perforated Return Air Filter Grille with Plenum Box - 24 x 24 T-Bar Lay-in Drop Ceiling Height_24in + Product Details Size -For Lay In T Bar Ceiling High Quality Steel Construction SAVE MONEY ON YOUR BILL PRESERVE YOUR HVAC UNIT Highest Rate Of Air Flow Efficiency Easy Unrestricted Air Flow For Your HVAC System 1 2" x 1 2" x 1 2" Cube Core Offers 90% Free Area 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