Backflow Prevention System: A oneway valve mechanism prevents backflow, ensuring dependable operation during brake maintenance and reducing the risk of air reentry. Enhanced System Reliability: The precisionengineered oneway valve stops air from reentering the system, maintaining a controlled unidirectional flow and improving braking system reliability. Optimized Coordination: Reduces repetitive steps and improves hose–valve coordination, lowering operational difficulty and shortening time for smoother brake maintenance tasks. Stable Performance Assurance: Resistant to brake fluid damage with a flexible design, the hose provides a leakproof sealed interface and visible flow during operation for dependable use. Use scenarios Brake bleeding during routine maintenance to ensure unidirectional flow, minimize backflow risk, and maintain clear visibility of the process. Workshop tasks where streamlined hose–valve coordination reduces steps and shortens service time. Maintenance situations requiring reliable, fluidresistant performance and a leakproof interface, with visible flow to verify proper operation.