Have a "Hydramatic" submersible sump pump. These pumps have ball bearings, and run in oil to keep them cool, reliable, and run for a long time. This pump came from my fathers home before we sold it. It was used as a back up in case the other pump failed. It has been used very little, the tag on the pump has a date of 2-13-06. The pump model # is SD33A1. If more info. is needed either reply to post, or call (810) . Thanks for looking $110.00