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our damper helps create a well-balanced indoor environment
14"w X 4"h Is The Size For The Duct Opening Measurement Only
actual front end outer dimensions are approximately 38 5/8" width X 36 5/8" height
+ Product Details Size - 34"w X 32"h is the size for the duct opening measurement only
20"w X 20"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: 21.125" X 21.125"] 18" Diameter you're covered by our 100%+ Product Details Size 20"w X 20"h Is The Size For The Duct Opening Only, Dimensions With Outer End are 21. 125" X 21. 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
