The filter pumps are with durable quality. The polished aluminum oxide ceramic impeller shaft is non-corrodible and more than 3 times as hard as stainless steel to ensure the pumps long life. Our water filter pump is with a small current, high head, large and adjustable flow. The pre-filter on the intake prevents debris from entering the pump and extends the life of the pump. With adjustable Knob to control the water flow rate, so you can adjust the amount of water pressure you want. We could be used water filter pump for aquarium , fountains, pond, spout, and hydroponic systems.