Hold Down Kit for 550P & Campa XTThetford hold-down kit is produced for 550P and Campa XT models. The Thetford Hold Down Kit you mentioned is designed for the Thetford Porta Potti 550P and Campa XT portable toilets. This kit is used to secure the portable toilet to the floor or other surfaces to prevent it from moving or tipping over during use. It typically includes brackets, screws, and other hardware needed for installation. The Thetford Porta Potti 550P and Campa XT are popular portable toilets used in camping, RVs, boats, and other outdoor activities. The Hold Down Kit provides added stability and safety, especially when the toilet is used on a moving or uneven surface.