EheimCarbon Filter Pad for Classic External Filter 2211 (3 Pieces)

My fish don't seem to mind. Water quality tests good after a week.I try to change filter every two weeks. Though directions say it can last a month.Super easy, no messy charcoal or sediment to worry about. No cloudy water.Eheim is best external filter I've tried and may quite be the only one I'll trust.There may be more expensive ones and more complicated, but eheim external filter tank serves my purpose well.4 stars for cost at 9-10 $, unless found on sale.They probably cost like 2-3 cents to make.

Adequate description. Functions as described.

Such a ripoff for what is essential a small patch of felt.

good

It is what it is.

Great stuff. A marked improvement over the old loose charcoal and bag.

Arrived Fast and exactly as described

Did its job, Can't ask for more.