For sale is a Tecumseh Little Giant Magnetic-Drive Industrial Water/Chemical Pump
Model No. 7121 - 4476 Type U21 (2MD-HC ; Catalogue # 580603); Used in labs, etc. Retail is over $500.
As a small industrial specialty pump, this would also be great for swimming pool chemical addition, garden waterfall project, science fair project, etc. The fully immersed impeller is driven by a magnetic drive. See photo for the head-capacity chart. 115 volts, 131 watts, 3000 rpm, 1/4 hp
It has never been used - picked it up at an estate sale - original box and instructions