HAOYI /Features: 1. The RV toilet sealing kit flushes the seals and perfectly fits FOR 300, 310, and 320 RV toilet models2. The RV toilet sealing kit is made of high-quality materials, with strong sealing performance and long service life. Easily solve the problem of water leakage, making your travel worry free3. Follow our simple instructions to easily replace your old RV toilet seal flush seal. Turn off the water supply, remove the old flushing ball, and then place the new flushing ball back in place. After installation, check for leaks. Remember to face the side of the flush ball marker upwards.4. The water toilet seal consists of two identical flushing seals, which will completely solve the sealing problem of your RV water closet.5. Use our top- RV toilet sealing kit to travel without worries.Specifications: Material: Silica gelcolour: blackPackage Contents: 2 x rv toilet sealOnly 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.