Features: The piston shaft assembly replacement set is designed to enhances the efficiency of your pool's backwash valves, ensuring clear water quality and seamlessly operations for pool systems. Crafted from plastic, this set boasts high corrosion and wear resistance, extending the lifespan of your equipment while minimizing the need for frequent replacements. Ideal for pool owners, maintenance technicians, and swimming facility operators who prioritize efficient equipment performances and water safety. Perfect for both residential pool upkeep and commercial pool management, this set simplifies routine maintenance tasks, ensuring optimal system functionality throughout the swimming season. With precisions manufacturing and compatibility with multiple models, this replacement set offers a comprehensive solution for maintaining your pool's filtration system, making it essential component for any pool maintenance tool. Specifications: Component: Plastic Part Number: 263055 263064 263052 263053 263078 263079 25831110000 Applicable Model: For FNS Plus, 180007 180008 180009 Size: Approx. 2.99x20.5inch(7.59x52.07cm) Package Includes: 1 Set Shaft Assembly Replacement note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.