The Eheim Classic comes complete with canister chamber, spray bar, inlet pipe, hoses, installation accessories and filtration media.
As soon as you pick it up it’s obvious just how well-built this filter is. All of the parts from the canister chamber to the tubing are made of high-quality materials that feel very solid in your hands.
Even the clips that attach the motor head to the canister are made of stainless steel instead of the cheap plastic used by every other manufacturer. That means the clips won’t break, and if they lose their shape you can easily bend them back with pliers.
The Eheim Classic does not have any media trays, which can be a negative for some since you have to keep your media separated when you empty it for cleaning.
But, when filters with media trays get dirty, water tends to find the path of least resistance and bypass the filtration media altogether, which defeats the purpose of having a filter.
Not so with the Eheim Classic!
The simple bucket design with the intake at the bottom and the exhaust at the top means that your tank water will always pass through the filtration media, even if you haven’t cleaned it out in months.
Sure, your flow rate will decrease, but the filter will keep doing its job and keep your water clear. The lack of media trays also means you can fit an insane of amount filtration media in this thing.
One of the few complaints about this filter is that it can be difficult to prime. In this modern age of self-priming canister filters, the Eheim Classic sticks to the more involved process of manual siphoning. But, the process is not complicated.
If you’re not sure how to go about priming the Eheim Classic, check out this video: