Features: Stainless steel increaser/reducer for chimney lining connections. Stainless Steel Stove Pipe Reducer is used to connect an appliance to either a chimney liner, stack or twin wall flue . It can also be used to reline existing masonry chimneys. Use stove pipe cement or caulking material rated for use with a wood stove. The cement must be able to withstand high temperatures. Clean the area with a wire brush prior to sealing to remove any rust or debris. Used to reduce diameter of galvanized round perimeter pipe. For all heating, air conditioning and venting where rigid pipe is required. Specification: Size：Ø60mm/Ø50mm，Ø70mm/Ø50mm，Ø110mm/Ø50mm，Ø70mm/Ø60mm，Ø80mm/Ø60mm，Ø90mm/Ø60mm，Ø100mm/Ø60mm，Ø110mm/Ø60mm，Ø120mm/Ø60mm，Ø80mm/Ø70mm，Ø90mm/Ø70mm，Ø100mm/Ø70mm，Ø90mm/Ø80mm，Ø100mm/Ø80mm，Ø100mm/Ø90mm，Ø110mm/Ø90mm，Ø110 mm/Ø100 mm，Ø120 mm/Ø100 mm Material: Stainless steel Package Contents: 1*Stainless Steel Flue Liner Reducer Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Made of high quality material, durable and practical to use. Perfect functions,give you a wonderful experience. If you have any questions, please feel free to contact us, we will solve it for you. Every customer can enjoy 30 days refund or replacement for Damaged/Quality Issues.