EHEIM aquaball 180 masses filtranteThe round pump head is located in a ball-and-socket joint. This allows you to adjust the direction of discharge to your wishes. With the flow regulator you can determine the flow rate, and with the Power-Diffusor you can dose the air supply. The modular system allows you to adapt the filter volume individually. The filter baskets are easy to handle and can be filled with different filter media.