Possession of this pump since 12 August 2012 and since then in continuous operation on a 24/7 30l Nano basin and thus run a airlift filter. So far, so ~ 26 months operating time without failure without grumbling. I think this is due to the Eheim quality for you again have to put a few more on the table than other manufacturers. I would recommend this product without hesitation. 'm Going to get probably soon a new, because I currently have no spare pump and until now had not even thought about it ....
