The Blendtec SRV-669 is a comprehensive Rapid Rinserâ„¢ Service Kit designed for efficient maintenance of your blender container rinser. This kit includes essential components such as a needle valve with magnet, a needle valve spring, and a diaphragm assembly to ensure optimal performance. It also comes with four valve assembly screws, an O-ring for a secure fit, four suction cup feet for stability, and an activation magnet extension for enhanced functionality. This service kit is ideal for keeping your rinser in top condition, ensuring quick and effective cleaning of blender containers.