14"w X 14"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: 15.125" X 15.125"] w28h28 + Product Details Size -

+ Product Details Size - 28"w X 26"h X 2"d (for duct opening measurement only)

Experience enhanced indoor comfort with our 6" Butterfly Damper

Design – Easy unrestricted air flow for your HVAC system

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 32" OR 32" X 16" duct opening (measured at the opening)

14"w X 14"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: 15.125" X 15.125"] w28h28 + Product Details Size -+ Product Details Size 14"w X 14"h Is The Size For The Duct Opening Only, Dimensions With Outer End are 15. 125" X 15. 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