Aluminum Fixed Bar Return Air Filter Grille with Plenum Box - 24 x 24 T-Bar Lay-in Drop Ceiling Height_18in Actual Filter Size – 33

Actual Filter Size – 33 3/4"w x 9 3/4" x 1"

ceiling or ceiling tiles – provides safety with the included safety wire to prevent the door from falling off

Experience enhanced indoor comfort with our 6" Butterfly Damper

10" Circular Round Aluminum HVAC Supply Grille Air Diffuser - With Butterfly Damper - Vent Duct Cover

+ Product Details Size – 14"w X 24"h pleated MERV 8 filter for HVAC return filter grille - 3 Pack

Aluminum Fixed Bar Return Air Filter Grille with Plenum Box - 24 x 24 T-Bar Lay-in Drop Ceiling Height_18in Actual Filter Size – 33Pre scored Outlines per Diameters from 6" 18" Outer Dimensions 23. 75" x 23. 75" Plenum Box Depth 5. 25" Plenum Size 20x20 Filter Size to be used: 20x20x1 For Lay In T Bar Ceiling High Quality Aluminum Construction 2 3" bar spacing Horizontal bars are fixed at 45 degrees for Great Airflow Dynamics 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