The PSE-2003LAP from Monsam Enterprises is a three deep-basin hand-washing station that is portable and propane-powered, so there is no need for plumbing. Models are also available in one, two or four basins. It allows customers to have hot or cold running water whenever and wherever they need it without electricity. Water can be heated up to 145 degrees F. It comes with freshwater and wastewater tanks, and industrial casters with brakes for easy mobility. 800/513-8562; www.portablesink.com.