The 8 PVC BACKWATER VLV EXT COMP ONLY by Spears is an essential component for enhancing the functionality of backwater valves in drainage systems. Designed for use with 8" PVC backwater valves, this extension component allows for flexible installation and adjustment, ensuring optimal performance in preventing backflow. Made from high-quality PVC, it offers excellent durability and resistance to water and sewage. This extension is ideal for both residential and commercial plumbing applications, meeting all relevant industry standards for safety and reliability.