Seller: mbmort (6,627) 99.9%, Location: Wixom, Michigan, Ships to: Worldwide, Item: 162276642670 Condition: These are rusted and most of the paint is gone. Please note which one you want #1 or #2 or both., Material: Cast Iron, Details: This is a Vintage Cast Iron Furnace Cold Air Return Vent Grate with a Honeycomb and rectangle pattern. Outside measurement is: 14"x16", Screw holes are about 1.5" in from either side. Take #1, #2 or both. These have rust and paint is mostly gone. Great old pieces.