Noise free components - no vibrating louvers etc
rust-free aluminum construction with smooth finished edges and counter-sunk screw holes (screws included)
These are airflow control components made to connect to supply grilles of the drop ceiling
Actual Front End Outer Dimensions Are 12" Diameter
Incorporated with Integral Butterfly Damper for full Airflow Control
16"w X 16"h Extruded Aluminum Adjustable Surface Mount Supply Ceiling HVAC Air Grille Interchangeable: 1-Way, 2-Way, 3-Way or 4-Way - Vent Duct Cover [Outer Dimensions: 17.125" X 17.125"] Insulated Line Set Noise free components - no+ Product Details Size 16"w X 16"h Is The Size For The Duct Opening Only, Dimensions With Outer End are 17. 125" X 17. 125". Design Re configurable Interchangeable Sections Easily convertible into 1 Way, 2 Way, 3 Way, or 4 Way Just lift sections and rotate to re configure direction. High Quality Aluminum The premium durable aluminum will never rust and it will never wear through leaving the material with an elegant, beautiful, and smooth surface, adds
