SELKIRK Corp 206018 6x18 Stainless Steel Pipe/Lock Band Product Description Sure-Temp, 6" x 18", 6T-18, All Fuel, Double Wall, Chimney Pipe. Comes equipped with locking band and solid pack insulation. Tested to withstand 2100 F and is UL listed. Test helps to prevent product damage, or structural hazard during brief periods of this excessive chimney temperature. Constructed with a stainless steel outer casing and inner liner. 2" inch minimal clearance to combustibles. From the Manufacturer Sure-Temp, 6" x 18", 6T-18, All Fuel, Double Wall, Chimney Pipe. Comes equipped with locking band, and solid pack insulation. Tested to withstand 2100 F, and is UL listed. Test helps to prevent product damage, or structural hazard during brief periods of this excessive chimney temperature. Constructed with a stainless steel outer casing, and inner liner. 2" inch minimal clearance to combustibles. Features Manufactured in United States Easy to use Highly durable Sure-Temp, 6" x 18", 6T-18, All Fuel, Double Wall, Chimney Pipe Comes equipped with locking band and solid pack insulation Tested to withstand 2100 F and is UL listed Test helps to prevent product damage, or structural hazard during brief periods of this excessive chimney temperature Constructed with a stainless steel outer casing and inner liner. 2" inch minimal clearance to combustibles USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.