Recreational vehicles are not just an investment, but also an expression of an individual lifestyle. Additionally, everything must function perfectly. If a Dometic CT 3000 or 4000 toilet model has been improperly installed by a previous owner or has aged, don't replace it; instead, revitalize it. With the Dometic replacement kit, you can swap out essential components, allowing you to save both money and time while ensuring a clean, hygienic, and reliable toilet. Easy replacement, clean and hygienic. Contents: waste tank, toilet seat including lid, flush ring cover.