The Flat Vacuum Tank from Crescent Tank Mfg. has a low-profile design with low center of gravity for hauling up to eight portable restrooms, additional water tanks and any other equipment needed for the job. Liquid waste is held inside the truck bed, and it has a separate freshwater poly tank. The vacuum tank is constructed from 1/4-inch mild steel construction and has primary and secondary traps, a prefilter, oil-catch muffler, two 3-inch sight glass waste level indicators, a 2-inch ball valve vacuum inlet on both sides, 25 feet of 2-inch vacuum hose with wand assembly, and a 3-inch gravity discharge ball valve on the rear driver’s side. The freshwater tank is constucted from poly plastic with a 12-volt water pump that pumps 5 gpm at 60 psi. It has 50 feet of retractable 3/8-inch hose. 585/657-4104; www.crescent-tank.com.