Features: 1. The RV toilet sealing kit flushes the seals and is compatible with 300, 310, and 320 RV toilet models. 2. Made from high-quality materials, this RV toilet sealing kit offers strong sealing performance and a long service life. It helps prevent water leakage, ensuring reliable performance during travel. 3. Follow the included instructions to replace the old RV toilet seal. Turn off the water supply, remove the old flushing ball, and install the new one in place. After installation, check for leaks. Ensure the flush ball marker is facing upward. 4. This kit includes two identical flushing seals, providing a complete solution for your RV toilet sealing needs. 5. Use this reliable RV toilet sealing kit for worry-free travel. Specifications: Material: Silicone Color: Black Package Contents: 2 x RV toilet seals Note: The package includes only the items listed above. Other products are not included. Light reflection and differences in display screens may cause slight variations in color between the image and the actual product. Measurement may vary by +/- 1-3 cm.