Powertank RECTANGULAR - Twin Pump Variable Speed - 500ltr The Powertank Rectangular pumping range is designed for domestic and light commercial use where there is low mains water pressure and where pressure fluctuates.  It is electronically controlled through a flow switch unit which starts and stops the pump automatically when a tap is opened and closed.  The Rectangular range is designed for areas where the floor space is not restricted but where height restrictions are an issue. Variable TWINTwin Pump Option The twin pump option adds an extra pump into the tank. This gives you twice the amount of flow at the same pressure, as well as an option to have the pumps running on duty standby basis, or as 2 individual duty pumps (e.g. if you wanted to run 2 separate circuits) Key Features: - Non-corrosive holding tank (WRAS approved material)- Pre-fitted WRAS approved fill valve- Minimal installation requirement- Adjustable digital display flow controller (Variable Speed Option)- Dry run