All Thetford Porta Potti Models ¥ Two pieces come apart, reattach easily ¥ No-spill vented fresh-water fill cap ¥ Exclusive, rotating pour-out spout for no-splash emptying ¥ Handy built-in deodorant storage for ready availability (bottle included) ¥ Push-button air relief valve for quick, clean tank evacuation ¥ Easy to carry, use and clean