The Century A.O. Smith B668 Letro Replacement Booster Pump Motor is a powerfully designed direct replacement for your Pentair Letro brand pool cleaner pump. Designed with ball bearings and a stainless steel shaft, the Century Pool Cleaner Motor is built to last for years and protects against wear and tear. It is engineered with a 40C Ambient, and its Class B Insulation prevents meltdowns caused by overheating. The Century Pool Cleaner Motor is an effective replacement motor for the Pentair Letro Pressure Side Pool Cleaner and fits Pentair Booster Pump LA01N-manufactured March 1997 to present. It is available in 3/4HP and 230/115V.