- Reliable Material: Constructed from high-quality silicone, this RV toilet seal offers excellent corrosion resistance, aging resistance, and abrasion resistance for long-lasting durability. - Compatibility: Designed as a replacement for RV toilet part number 385311658, it is compatible with the 300, 310, and 320 series RV toilets. The seal features an inner diameter of 69mm (2.72 inches) and an outer diameter of 100mm (3.94 inches), ensuring a perfect fit for a variety of applications. - Effective Sealing: This RV toilet seal provides an airtight and durable barrier, effectively preventing wastewater and odors from leaking into your RV. It helps maintain a clean and hygienic environment, enhancing your overall RV travel experience. - Easy Installation: Installing the RV toilet seal is straightforward and can be completed in minutes without the need for complicated tools. Simply remove the old seal—no toilet disassembly required—place the new seal in the correct position, ensuring the marked side faces up. - Practical Use Scenarios: Ideal for maintaining your RV’s plumbing system during long trips, seasonal storage, or routine maintenance. This durable seal is essential for ensuring your RV toilet functions properly, allowing you to travel comfortably without worrying about leaks or odors. Choose our RV toilet seal for a reliable, user-friendly solution that keeps your RV clean and odor-free.