The Vulcan V12ST4 is a high-quality backguard flue riser designed for efficient venting. This stub riser features a 4-inch diameter and a non-overlapping design, ensuring a secure fit and optimal airflow. With a height of 12 inches, it effectively elevates your flue system, enhancing performance and safety. Ideal for various applications, the Vulcan V12ST4 combines durability with functionality, making it a reliable choice for your venting needs.