ADJUSTABLE FLOW RATE: ERWEY Aquarium Water Pump allows you to easily adjust the water flow to meet your needs. The maximum water flow can be up to 600 L / H and the maximum lift height up to 180 cm with a high efficiency 10W motor QUIET DESIGN: ERWEY Aquarium submersible pump is designed with pure copper wire motors, very energy efficient and providing a quiet and pollution free environment 4 SOLID SUCTION CUPS: The bottom of the basin fountain pump is equipped with four powerful suction cups, ideal for vertical and horizontal mounting EASY TO CLEAN: No tools needed to detach the water pump, easy to separate, easy to clean LARGE APPLICATIONS: & nbsp; adjustable pump can circulate your freshwater and saltwater tank. Perfect for aquariums, tabletop fountains, water gardens, hydroponic systems, etc.