We are offering a decorative, large, and heavy grate for a cold air return. Measures 31-1/8" square, inside circle opening is 20", in great condition. Please write if you have questions.The item "Large Cast Iron Grate With Removable Center Salvage Repurpose 31 Square" is in sale since Sunday, April 14, 2019. This item is in the category "Antiques\Architectural & Garden\Other Architectural Antiques". The seller is "leede1" and is located in Grass Lake, Michigan. This item can't be shipped, the buyer must pick up the item.