Selway River Bank IISelway River Banks II toilet systems are rotomolded from low linear link polyethylene. They utilize the largest rotomolder in the country with the best equipment and most knowledgeable engineers. We incorporate aluminum and stainless steel parts to insure long life in demanding conditions. The full system includes: An inner bucket, an outer bucket, a pressure release valve, an RV hose, a garden house coupler, instructions for use and a heavy duty