The Eheim Original Classic Canister Filter features carefully tailored external canister filters, equipped with high quality components with an excellent price-performance ratio. You can't go wrong when you choose a classic model. classic external canister filters have everything a filter needs. What's more, they feature the proverbial EHEIM running smoothness and sophisticated functionality. On the market for years and proven millions of times, the classic range has meanwhile become the basic model in the world of EHEIM external canister filters. Not all aquarium owners expect convenient optional comfort features, priming supports and filter baskets. But that doesn't mean that you have to do without the perfect pump output and filter efficiency, maximum running smoothness and endless continuous operation characteristics of EHEIM filters. In short: you will find all the features which make up an EHEIM external canister filter in the classic models.