The Aquaking Q5503 is a high pressure waterpump great for larger reservoirs, ponds and commercial horticulture. It comes with an external float switch (not shown) for auto cut off, so it will stop pumping when all the liquid is gone, preventing damage or burnout to the mechanism. 550watt. Max delivery 11000L/hour. Max immersion depth 8m. Max delivery height 8.5m.