Aquarium plunger head designed to force water into an external filtration system or simply move water into your aquarium. The air tube feature will help you aerate your tank by drawing air into the tank and creating bubbles in the water. Aeration nozzle provided to create bubbles and increase oxygen levels in the returning water. Max flow 2800L/h, power 35W, max height 2.0m with adjustable down tube Recommended by the seventh bird