[e46er]

I got 2 -1.1ml/min shlobster and a 50 ml/min one and they are both basically bang on. been probably 2 years? maybe longer they were around 90-100 each but realistically it doesnt matter if it doses more or less than advertised as long as its consistant you can adjust your on/off time,
i have no problems with cheap jebao power heads in fact i really like them but something as important as dosing, ill spend some extra $$. i tried the magic marine doser 2 motors crapped out in a month or so and I learned my lesson.