The Little Giant PE-1.5-MDI-SC Series features leakproof, seal-less magnetic drives and is designed for submersible use only. Volute, magnet housing, and impeller are glass-filled polypropylene for excellent chemical resistance. Ceramic shaft and thrust washers are 99.5% pure alumina for excellent wear resistance and trouble-free service. Pumping heads are easily rotated, cleaned, or serviced with no special tools required. The spindle shaft is supported at both ends to prevent impeller damage during the start and stop of the pump.