Features: 1.Well Sealed: Our RV toilet seal kit will provide a tight and reliable sealing performance, making leaks and odors away from your RV toilet. 2.Reliable Construction: The RV toilet flush seal kit is made of premium craftsmanship and materials, can withstand the daily demands of RV use, providing long lasting performance and peace of mind. 3.Applicable Model: Our premium RV toilet bottom base seal ensures a perfect replacement for Dometic 300 310 320 RV toilet models, enjoy a worry free camping experience. 4.OE Number: The part number for reference is 385311652. Please confirm whether it is consistent with the OE you need to avoid wrong buying and other problems. 5.Easy Installation: Installing our RV toilet flange seal mounting hardware is quick and hassle free, just turn off the water supply, remove the old bottom seal ring, without the need for professional assistance. Specification: Item Type: RV Toilet Seal Kit_x000D_ Installation Type: Direct Replacement Installation_x000D_ Material: Rubber, Nylon, Stainless Steel, Copper_x000D_ OE Number: 385311652_x000D_ Fitment:_x000D_ Replacement for Dometic 300 310 320 RV toilet models Note: Please double check the part number and fitment of your item, matching information is for reference only.