The hand-wash station from Explorer Trailers is designed as a self-contained unit that allows outdoor event or work site crowds to have easy access to warm water and soap dispensers. Options include mirrors and lighting. Stainless steel sinks and counters with self-closing water-saver faucets are simple to clean and maintain, according to the maker. A large polyethylene freshwater tank, paired with a galvanized graywater tank, ensures many uses before discharge and recharge. Setup is easy, and a custom-painted steel chassis with front-locking utility cabinet ensures the unit is aesthetically pleasing, while safely containing the water heater and pressure tank. The graywater tank is horizontally mounted inside the chassis with a 2-inch discharge port at the rear. All are built on a commercial-grade trailer chassis for easy towing and placement. 866/457-5425; www.explorertrailers.com.