Designed to Perfection: Our RV toilet seal and mounting hardware kit is engineered specifically to provide a snug fit for RV toilets including 300, 310, 320 Series as well as model #31671, 34429, 302300093, 385311653, and many others. Ensuring better compatibility and seamless installation, making it perfect for your RV toilet needs. ncluded in the Package: Our RV toilet gasket package features a comprehensive kit that includes the 385311652 (385311653) mounting hardware and seal, essential for connecting the plastic ring to the toilet, but not the ring to the floor. All necessary parts for a complete, hassle-free installation are provided for user convenience. Quality Worth Trusting: We prioritize and performance in our products. Our valve seals are cultivated from a high-quality, application-specific rubber blend. This guarantees optimal performance and a long-lasting lifespan, ensuring you 't need frequent replacements, offering true value for money. Anti-Leaking Feature: We have innovatively designed our toilet rubber seals to successfully circumvent leakage problems. This feature provides ease of use, saving time and energy on frequent maintenance. Our seals offer not just functionality but also the convenience you need in your . Colour:As Shown Material:plastic Package Contents: 1 x rubber ring 2 x shim 2 x screw 2 x nut 2 x Plastic parts Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.