Slide-in service units from Pik Rite are available in 300- and 450-gallon sizes, with custom sizing available. Units are available in a variety of materials, such as steel, stainless steel and aluminum, and the option of ordering a freshwater or a non-freshwater compartment. The freshwater compartment includes a 12-volt washdown pump, while the non-freshwater compartment is designed with dome heads for added strength. The tank-within-a-tank design provides even weight distribution that doesn’t overload the axle, creating a safer environment for the driver. Various vacuum pump and engine options are available. Units have all-steel components, a 3-inch discharge with poly-ball valve, 30 feet of 2-inch hose with poly-ball valve and PVC nozzle, and a five-step paint process. 800/326-9763; www.pikrite.com.