Progress Tank offers slide-in units from 300- to 995-gallon capacity. All tanks are manufactured from aluminum, with horizontal freshwater and waste compartments for optimal weight distribution. Designed as a self-contained tank for long-box pickup trucks, the 450-gallon unit (300-gallon waste/150-gallon freshwater) tank uses a bolt-in system with forklift pockets for quick installation, removal and transfer. Pump options include Conde and Masport in either gasoline or diesel. Units come complete with vacuum/pressure pumps, washdown pumps, 50-foot washdown hose and 30-foot Tiger Tail hose. They have a 3-inch waste outlet valve with rear service, freshwater outlet valve with rear service, 5-inch glass sight eyes for the waste compartment, a clear tube for the freshwater tank and rack for service hose. Primary, secondary and oil catch mufflers complete the package. 816/714-2600; www.progresstank.com.