ADI M-Series single head diaphragm sampling pump is a general purpose motor that can be used in almost any application. The sampling pump is constructed of aluminum head and a Teflon ® / EPDM diaphragm. The M-Series pump with its special capacitor run feature, large bearings and fan allows for cool continuous operation with minimal maintenance. The lightweight miniture design of the M-Series ADI pump differentiates from the standard R-Series ADI sampling pump.