【PRODUCT FUNCTION & COMPATIBILITY】: Stove Pipe Adaptor is a key component that connects single wall or double wall stove pipe with chimney pipe, Regarding compatibility, the final match needs to be made based on the size of your chimney tube and the size of this product to ensure system stability and safety 【WARNING】:Please follow the instructions of the appliance manufacturer to determine the chimney pipe diameter. If you want to calculate the chimney's outside diameter, add 2 inches to the inside diameter, Never choose a chimney with an inside diameter smaller than your appliance's outlet 【MATERIAL ADVANTAGE】: Stove Pipe Adaptor made of 304 stainless steel & ceramic fiber blanket, it has superior corrosion resistance compared to competitors' galvanized steel or 430 stainless steel, under various environmental conditions without rusting or damage; high density ceramic fiber blanket insulation ensures no hot spots and no settling of insulation 【PRODUCT DESIGN】: Stove Pipe Adaptor featuring a unique twist lock connection design, it is convenient to connect with chimney pipe, and is also equipped with a black locking strap to enhance the stability and sealing of the connection. Painted black to match your Stove Pipe, with a coordinated and beautiful appearance(Partial paint loss on the product result from hook blockage during manufacturing) 【WIDE APPLICABILITY】: Stove Pipe Adaptor can be used for various residential heating equipment fueled by wood, gas, coal, or oil, such as wood stoves, fireplaces, fire boxes, stoves, boilers, water heaters, outdoor wood stoves, etc