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 - The listed 12" diameter refers specifically to the size of the duct opening

compatible with duct 4" | 10 in a pack - 4 inch diameter pipe – 20 foot length when connected – 30 gauge thick & made of thick & durable galvanized sheet metal

carefully inspect the pump for any visible damage that might have occurred during shipping or storage

Actual Filter Size – 7 3/4"w x 35 3/4" x 1"

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