Reversible, anti-clogging, air powered material transfer pump is ideal for conveying bulk materials, powders, pellets, hazardous chemicals and more. Pump offers instantaneous vacuum flow, high air velocity and a straight through design providing responsive, high speed, low maintenance conveying. If a clog occurs on the transfer lines, an operator unclogs the line by manually pressing the button in the front of the pump momentarily reversing air flow and dislodging blockage. Vaccon Company, Inc. 32 Rear Spring St. Medfield, MA, 02052