Designed for gas water heaters, this stainless steel exhaust features a chimney elbow and an extension for improved ventilation. The check valve prevents backflow, ensuring safe and efficient operation. Its durable construction and flexible design make it easy to install and maintain, providing a reliable solution for your heating needs. Features -Color:Silver -Material:Stainless steel -Size: 13.50X8.00X8.00cm/5.31X3.14X3.14in -Durable stainless steel: constructed from stainless steel, ensuring performance -Extended chimney design: the extended chimney elbow design improves the efficiency of exhaust gas discharge, making your water heater more effective -Builtin safety valve: equipped with an integrated check valve to prevent the backflow of exhaust gases, maintaining a environment -Flexible and robust: the corrugated structure offers excellent flexibility and durability, suitable for various installation scenarios -Effortless installation: comes with all necessary installation tools and a comprehensive manual, making the setup process straightforward Package list: 1 heater exhaust pipe