8"w X 8"h Extruded Aluminum Adjustable Core Mount Supply Ceiling HVAC Air Grille – Interchangeable: 1-Way, 2-Way, 3-Way or 4-Way - Vent Duct Cover [Outer Dimensions: 9.125" X 9.125"] Color_R-8.0 Pink this flex duct decreases the

this flex duct decreases the pressure loss and provides a more hygienic environment

+ Product Details Size – 25"w X 28"h is the size for the duct opening measurement only

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10"w X 2"h Is The Size For The Duct Opening Measurement Only

This aluminum adjustable louvered garage vent allows air ventilation and circulation in your garage 24 hours a day

8"w X 8"h Extruded Aluminum Adjustable Core Mount Supply Ceiling HVAC Air Grille – Interchangeable: 1-Way, 2-Way, 3-Way or 4-Way - Vent Duct Cover [Outer Dimensions: 9.125" X 9.125"] Color_R-8.0 Pink this flex duct decreases the+ Product Details Size 8"w X 8"h Is The Size For The Duct Opening Only, Dimensions With Outer End are 9. 125" X 9. 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 a