There are many pretenders but only one Eheim (range). Quiet, efficient and long lived. I can't exactly remember how long ago I bought my 2213 original but it's at least 20 years. I've never replaced any part except the media. Still going very strong. If I ever need another filter you would have to produce a very convincing argument to make me stray from Eheim, even if it was twice the pretenders price.

Old timer signing off now to have a nap.

Ian