Aquael Replacement Sponge for Pre-Filter Container for Ultramax Canister Filters

REPLACEMENT Inbuilt pre-filter sponge – the first of its kind in the market. There is a big sponge pre-filter built into the lid of each ULTRAMAX filter (with a capacity of ca. 0.6 l). It is designed to capture course mechanical impurities before they can get inside the filter. In this way, the pre-filter protects the device from clogging, which reduces the required frequency of cleaning to a minimum. Instead, it is sufficient to regularly wash the pre-filter sponge in tap water. This only takes a few minutes and does not require disconnecting the filter from the power supply or taking it out of the aquarium stand.