This lasted a week before started rattling. TONS of air in 350l I would say too much. VERY loud from new. SO SO DISSAPOINTED. I wish I'd bought the eheim now. Dont believe the blurb about quiet and warranty as this huge sized lump of a pump is simply dreadful.
Bought 10 of these to take my aquarium water with me when I moved. Its true that they smell but you dont use a new kettle without rinsing several times either. The could not be better for the price I paid. Very easy to handle compared to the large drum alternative and 10 fit folded in a boot box nice and neat. The only way to go in my opinion.