All component parts are Stainless Steel and UL listed. Unlike most of our competitors, we DONOT sell cheaper costing component parts that are made in China or India. All of our component parts are made in the USA and back by a Lifetime No Hassle Warranty. Removable Tees Tee Cap Adjustable Elbows Top Clamps Flex Connector Guide Cone Reducers & Increasers Smoke Pipe Storm Collar Top/Bottom Plate Sleeve Thermix Insulation Copyright © 2008 Chimney Depot Inc. All rights reserved.