The Flat Vac multipurpose portable restroom tank truck from Amthor International allows the operator to carry up to 12 restrooms on top of the tank as well as pull a restroom delivery trailer. The body has a rounded bottom with a full-length formed sump design for ideal drainage and full baffles for tank strength. The flat tank has separate wastewater and freshwater compartments and an optional chemical or brine compartment. It is available in steel, stainless steel or aluminum. Each unit comes with a workstation, vertical cabinet and an aluminum extruded door with numerous shelves. A liftgate is installed behind the tank to load and unload restrooms. All units are custom built to specification. 800/328-6633; www.amthorinternational.com.