The Explorer hand-wash trailer from Explorer Trailers - McKee Technologies offers sanitation for large crowds with a 500-watt water heater and 120-volt on-demand water pump. It has stainless steel countertops and sinks, with dispensers for soap and towels. It has a front service compartment with locking doors, a 230-gallon poly freshwater tank and a 250-gallon galvanized steel waste tank. Its structural steel frame with four corner stabilizer jacks rides on a 2,200-pound torsion axle and has a 2-inch coupler for easy towing. 866/457-5425; www.explorertrailers.com.