Each MC- or GC-series pump utilizes the balanced 3-gear set unique to Smith pumps.The internal porting and superior construction enable these pumps to handle continuous duty service applications and pump against high differential pressure.The MC-series features an adjustable internal bypass valve.The GC-series features a permanently set internal bypass valve at 90 psid.The GC-series pump can be used in conjunction with an internal combustion engine for portable transfer applications.Both MC- and GC-series are designed for direct motor mount to 56C-frame electric motor.Foot mount available.