The Scan DS4 fireplace parts secondary air manifold 223776 are designed for fireplace use, specifically the DS4 model. Made of durable stainless steel, these fire bricks provide a sturdy construction for the fireplace. The upper guard included in the set adds an extra layer of protection and security to the fireplace, ensuring safety during use. Ideal for home improvement projects, this accessory is a valuable addition to any fireplace and stove setup.