Little Giant 7-MD-CK (587106) is a pump head less motor MD-CK Series with a 1 1/2" FNPT Intake and 1" MNPT Discharge was specifically engineered to handle highly corrosive chemicals, solutions and other special fluids at elevated temperatures with high efficiency and long term dependability, because of the unique materials used in it's construction. Little Giant 7-MD-CK has Carbon-filled polyvinylidene fluoride Back Plate, Volute, Impeller Assembly and a chemical resistant plastic separator housing to ensure ultimate chemical resistance. Only chemical resistant materials are in contact with fluids. Carbon-filled Kynar Impeller utilizes Teflon (Chemloy) Bushing between itself and the spindle for the ultimate performance and functionality. Little Giant 7-MD-CK boasts leakproof, seal-less magnetic drive, Fluid Temperature operation up to 200F and Ambient Air Temperature up to 77F. Ceramic shaft seal, thrust washers and Viton parts are 99.5% pure alumina provide a longer service life, excellent wear and trouble-free service. Pumping heads are easily rotated, cleaned or serviced with no special tools required.