8" x 8" [Duct Opening] Flat Plaque Aluminum Ceiling Supply Diffuser Duct Cover with Lever-Operated Damper for Air Flow Control [Outer Dimensions: 11" x 11"] Material_Aluminum ensuring they don't overlap

ensuring they don't overlap

Design – The stack boot at the bottom of the stack allows a transition from an ordinary large round or rectangular duct to a thin wall-mounted duct

Premium Quality – Our duct stick-on collar with damper has made of high-quality galvanized steel metal for durability and rust prevention

+ Product Description Introducing our High-Quality Copper Coil

Electrical Connections: Turn off the main power supply before making any electrical connections

8" x 8" [Duct Opening] Flat Plaque Aluminum Ceiling Supply Diffuser Duct Cover with Lever-Operated Damper for Air Flow Control [Outer Dimensions: 11" x 11"] Material_Aluminum ensuring they don't overlap+ Product Details Size Refers to duct opening only. The face frame extends roughly 1. 5" on each side. Do not measure the overall grille for sizing. Design All aluminum frame and back blades. Rustproof and built to last in moisture prone environments. Quiet Airflow Opposing blade damper design reduces vibration and noise for smoother air distribution. Clean Finish White powder coated surface resists chips, scratches, and discoloration over time. Easy