The Predator liquid vacuum tanker from Guzzler Manufacturing is designed for handling bulk liquids, sludge and semisolid waste in industrial applications. It combines high vacuum and pressure off-loading designed to deliver reliable performance in the most demanding applications. The 3,000-gallon tanker has a standard vacuum pump capable of suction pressures up to 27 to 29 inches Hg, maximum airflow of more than 400 cfm, and more than 300 cfm at 18 inches Hg. Alternate pump sizes are also available. The single-compartment tank is constructed with carbon steel and is rated for continuous maximum vacuum operation and 15 psi working pressure. Built in accordance with Section VIII of the American Society of Mechanical Engineers boiler code, the tank complies with the U.S. Department of Transportation specification DOT 412 for hauling hazardous materials on the highway. 815/672-3171; www.guzzler.com.