Vertiflo Pump Company’s Series 700, 800 and 900 immersion sump pumps are available with variable frequency drive (VFD) motors. These vertical immersion sump pumps built for sump drainage, flood control and process drainage meet EPA and OSHA requirements. These motors offer a cost-effective method of varying the pump performance as desired while conserving energy consumption. Vertiflo pumps are designed for nonresidential applications and currently over 20,000 are operating successfully worldwide.
For more information: http://www.vertiflopump.com