8PCS Rubber B-108288 Duckbill Valve Replacement Part Bathroom Fixture Suitable for 503/503H/504 Series Flush Valve

Contains: 8 pieces B-108288 duckbill valve replacement parts, ample stock available. Suitable for 503, 503H and 504 series flush valves. | Function: The one-way check valve maintains flushing performance by introducing air, ensuring air circulation within the flush tank, maintaining stable pressure and enabling efficient flushing. | Material: Made from high-quality, highly elastic rubber, it is wear- and corrosion-resistant, suitable for prolonged operation in water, ensuring the flushing tank functions smoothly. | Installation: Simple and time-saving installation, replacement requires no tools, allowing the flush valve to resume normal operation quickly. Dimensions match the original part perfectly, ensuring a seamless fit. | Installing this B-108288 duckbill valve will restore the toilet's original flushing power, improve the smoothness of the water flow, and maintain a constant pressure to enhance the flushing effect.