304L Stainless Steel Rigid Chimney Liner - High Temperature Resistant, Corrosion Proof for Wood Stove, Fireplace & Furnace - Perfect for Home Heating & Ventilation Systems

316L Stainless Steel Rigid Chimney Liner - Durable & Corrosion-Resistant for Wood Stove, Fireplace & Heating Systems - Perfect for Home Safety & Efficient Ventilation