[Provide Quiet Environment]: This 400 GPH pump don't maker loud noise, it can provide you a quiet environment, whether you use it in outdoor fountain or indoor fountain, it won't disturb the peace of environment, bring you comfortable and relax using experience. [Multi-Use]: This pump can circulating water to keep the health of water, can keep the oxygen content of you auqarium, and can also creat natural environment to keep your fishs' health. This pump is good for mid size auqariums, and fish tank, small pond, water fall, water feature, water table, water fountain, hydroponics and other place that need pumping water. [Easy Cleaning]: This pump is made by tool-free design, you can open it just by hand, and there is no dead corners inside this pump, very easy and very fast to clean. [Flow Regulator]: This pump is made with a flow regulator, you can adjust the water flow from 0 GPH to 400 GPH by rotate the flow regulator, but when the water flow increase the lift height decreases, and the max lift height is 6.5 ft. [Easy Placing]: This pump is 3.3×2.3×2.8 inch size design, you can place it at almost everywhere, it don't have a big size that need you to move this or move that in you fountain and auqarium. It has 4 strong suction cups, not only can fix the pump in place also bring you more ways of place.