Thetford Porta Potti 165/365 Hold Down KitFor obvious reasons, it is a good idea to keep your Thetford Porta Potti fixed to the floor when you are out on the road or bobbing about on the ocean and the Thetford Porta Potti 165 365 Hold Down Kit was designed with exactly this purpose in mind. Perfect to give your Porta Potti stability in your motorhome, caravan or boat, this hold down kit is high quality, durable and easy to detach when you need to maintain or empty your portable toilet.