【3 Pcs 385311658 Flush Ball Seal】- The package include 3 x 385311658 rv toilet seal replacement. 385311658 flush ball sealing gasket can effectively solve the problem of odor and leakage caused by the original gasket rupture, and discharge the peculiar smell, so as to achieve a better flushing effect, providing you with a clean rv toilet environment. PRODUCT DIMENSIONS ▶Outer diameter: 4", ▶Inner diameter: 2.75", ▶Thickness: 0.2" 【High-quality Rubber Material】- The 385311658 flush ball seal gasket is made of advanced structure and high quality RUBBER, which has been fully tested by the manufacturer. It has high efficiency, more durability and ensures its service life. Its compact and easy-to-operate overall structure is for safety and leakage prevention, giving you a more comfortable and clean use experience 【365 Days Guarantee】- 3PCS 385311658 Flush Ball Seal Gasket support 365 DAYS after-sales service. Our company attaches great importance to each customer's shopping experience. No risk shopping, if there is any quality problem, please timely contact customer service. We'll try our best to solve the problem. Customer satisfaction is our unremitting pursuit 【Fit for 300/310/320 Models】- 3 Pack 385311658 dometic toilet seal fit 300/301/310 series RV toilet, not 210 510 or any other model not listed! If unsure of compatibility, please consult us and provide your model before ordering 【Easy to Install】- The 385311658 flush ball seal gasket can be replaced by itself, very simple. Instead of removing the toilet, just take out the old sealing ring and replace it with a new one. If you do not know how to install, you can find the installation video through the online video to learn more. Before installation, turn off the water supply and power supply, and wear work gloves to protect your hands › See more product details