It's the same as the Azoo filter, I used it on their 1G cube. Fairly unremarkable--it's designed to move water through a filter pad and that's what it does. There's a knob to control flow rate. I eventually took the tank down because it proved to be more maintenance than it was worth (frequent water changes, replacing evaporated water). I wouldn't recommend the filter on anything larger than a 2- or 3-gallon tank.