There are three models with pump capacities of 100, 200 (2 x 100), and 400 (2 x 200) l/h, with the smallest model having one and the two larger models each having two separately adjustable air outlets. Accordingly, one or two Eheim diffusers are included in the delivery.

The air volume can be adjusted directly on the device for each air outlet, as well as at each diffuser. This allows you to customize the bubbling effect according to your taste and needs.