Little Giant 7-MD-HC (587103) is a pump head less motor MD-HC 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 with high efficiency and long term dependability. Little Giant 7-MD-HC has glass-filled polypropylene sulfide magnet housing, volute and impeller to ensure ultimate chemical resistance. Only chemical resistant materials are in contact with fluids. Glass-filled polypropylene sulfide (Ryton) Impeller with carbon bushing allows a Run-dry capability of up to eight hours without damage. Little Giant 7-MD-HC 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. Only chemical resistant materials are in contact with fluids.