Vtg Antique Ornate Cast Iron Floor Grate Air Vent Heat Register Cover 22.5x15. Good condition, no cracks, but has surface rusting. You could either keep it with the aged patina, or have it sandblasted and powder coated. Its quite large, measuring 22.5x 15.The item "Vtg Antique Ornate Cast Iron Floor Grate Air Vent Heat Register Cover 22.5x15" is in sale since Wednesday, May 19, 2021. This item is in the category "Antiques\Architectural & Garden\Hardware\Heating Grates & Vents". The seller is "draken0_2" and is located in Greenville, South Carolina. This item can be shipped to United States.