Adjustable water flow: The adjustment knob makes it easy to adjust the flow. The maximum water flow of the fountain pump is 600L/h Ultra-quiet operation: The reliable and durable motor is not only efficient, but also quiet, giving you a quiet environment. Wide range of applications: easily concealable small water pump for home and outdoor garden. Suitable for small and medium sized aquariums, pet waterers, bird pots, ponds, rock gardens, to hydroponic systems, watering the garden.