UW 400 110v 2" Automatic Submersible Pump. 400w 110v Motor. Cast iron Body Urathene Base and impeller. Ideal site pump , solid construction and Light but tough and. 110v 50hz site voltage motor , suitable for fixed installation and emergency pumping. Designed as a heavy duty submersible pump for sewage and solids for cesspit and site drainage, just as happy in a cellar basement or even powering waterfalls and biological pond filters.