The flow rate of the pondxpert ultraflow 3600 is 3,600lph and it is perfect for ponds up to 7,200 litres. we're seriously impressed by the reliability of the pondxpert ultraflow pumps and think they are well worth your consideration. As well as the standard features you would expect from any modern pond filter pump, these pumps also boast features usually found on more expensive pumps.auto off feature these pumps will turn themselves off if the water levels decrease below the level of the pump offering valuable protection in shallow ponds or hot weather!eco design the efficient eco motor consumes a smaller amount of electricity compared to similar sized pumps, reducing your electricity bill!easy maintenance the ultraflow pumps allow 6mm particles through the strainer cage, therefore reducing maintenance and preventing blockages.easy, tool free cleaning when cleaning, simply unclip the locking tabs for quick, easy entry to the pump motor.alternative inlet the ultraflow comes with a spare hosetail, and a alternative inlet option to draw water from a second area. E.g. A skimmer.please note this cannot be used to run both a second area and a filter simultaneously.dry running pump these pumps can be ran ‘dry’ if required.please note the pump should be positioned below pond water level if you are running the pump dry.