Chemker series are chemical resistant, diaphragm vacuum pumps which can be widely used to hard acidic, basic and solvent vapors by utilizing corrosion proof PTFE on all the wetted surfaces. Through innovative mechanical technology and human considerations, Rocker has made Chemker series to be quiet, safe, maintenance-free and cost effective vacuum pumps. We are an authorized Dealer for ROCKER Chemical Resistant Vacuum Pump in India. Rocker series vacuum pump is a chemical resistant, diaphragm vacuum pumps.