Steel Fixed Bar Return Air Filter Grille with Plenum Box - 24 x 24 T-Bar Lay-in Drop Ceiling Floor Register / Modern Victorian 4" X 10" Brass Victorian

4" X 10" Brass Victorian Floor Register Grille - Modern Contempo Decorative Grate - HVAC Vent Duct Cover - Brass Plated

+ Product Details Size – 14"w X 12"h is the size for the duct opening measurement only

The permanently attached eight-tumbler lock with a supplied key adds an extra layer of security

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 18" OR 18" x 20" duct opening (measured at the opening)

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

Steel Fixed Bar Return Air Filter Grille with Plenum Box - 24 x 24 T-Bar Lay-in Drop Ceiling Floor Register / Modern Victorian 4" X 10" Brass VictorianPre 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 Steel 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