1. Effectively releases accumulated vapor and pressure inside the fuel tank, ensuring smooth fuel pump supply. 2. Dust filter: features an internal mesh filter structure to prevent external impurities and dust from entering the fuel tank. 3. One-way/anti-tipping check valve structure: built-in steel balls and sealing components provide protection against fuel leakage when the vehicle is tilted. 4. Pagoda-style connector: the connector uses a multi-stage pagoda-style hook structure to increase the tightness and sealing of the hose connection. 5. Threaded split structure: the connector and housing are connected by threads for easy disassembly, cleaning, or replacement of internal components. 6. Interface specifications: 5/16 inches 7. Total product length: 74 mm / 2.91 inch 8. Valve body outer diameter: 25 mm / 0.98 inch