16"w X 16"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: 17.125" X 17.125"] Material_Steel + Product Details Size –

+ Product Details Size – 24" x 24" with 14" collar T-Bar drop ceiling perforated return grill - metal back casing

+ Product Details Size – 2"w X 10"h is the size for the duct opening measurement only

this grille offers a seamless blend of functionality and aesthetics

+ Product Details Size – 24" x 32" or 32" x 24" is the size for the duct opening measurement only

+ Product Details Size - 36"w X 4"h is the size for the duct opening measurement only

16"w X 16"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: 17.125" X 17.125"] Material_Steel + Product Details Size –+ 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