The Tsurumi HSD2.55S-61 is a semi-vortex submersible trash pump with agitator. The HSD is a semi-vortex, portable slurry pump driven by a single-phase motor. The impeller and stirrer are made of chromium iron for longer wear life when the pump handles abrasive media found in foundation or similar works. It also features a 550Watts output motor, which provides extra margin in its motor output for use in exacting conditions.