The Liquid Ring Vacuum Tanker from Ledwell includes a 3,000-gallon 5/16-inch-thick carbon steel, single-compartment tank that meets ASME/DOT 412 standards with external reinforcing rings. It has a hydraulically operated full-opening rear door with wing-nut enclosure, a pump mounted between the cab and tank, top-mounted overturn protection, a bolt-in baffle to welded reinforcing pads, rear-mounted liquid level indicator with stainless steel float ball, 4-inch inlet with Betts valve and cam-lock dust cover, 4-inch internal riser with wear plate, and a 6-inch rear discharge with Betts valve and cam-lock dust cover. The liquid ring pump module provides 1,200 cfm at 26 inches Hg. The unit is mounted on an Frt M2 106 chassis with a 300 hp Cummins diesel engine and 10-speed manual transmission. 888/533-9355; www.ledwell.com.