10"w X 10"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: 11.125" X 11.125"] 18in diameter + Product Details Size – 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
10"w X 10"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: 11.125" X 11.125"] 18in diameter + Product Details Size – 4 X 12 Is CRFG2028 Width_14in + Product Details Size – 14" x 14" is the size for the duct opening measurement only actual front end outer dimensions are 25" Width X 13" Height