Cold Air Return Floor Grate Register. Please see pics for measurements. Please see ALL pics & ask any questions. The item "Antique Ornate Cast Iron 12 x 14 Victorian Cold Air Return Floor Grate Register" is in sale since Thursday, September 17, 2020. This item is in the category "Antiques\Architectural & Garden\Hardware\Heating Grates & Vents".The seller is "*groveland*" and is located in Lindstrom, Minnesota. This item can be shipped to United States.