The SUNSUN CUP-809 internal filter is designed for more demanding aquarists who want to keep the water clean and clear over the long term. The combination of a filter sponge and filter media captures impurities, while UV-C radiation contributes to water sterilization and reduces unwanted cloudiness.
A practical feature is a separate UV-C lamp switch, thanks to which you can turn UV mode on or off depending on the current situation in the aquarium. The aeration function helps maintain a suitable oxygen level, which both fish and plants will appreciate.
For convenient installation, suction cups are provided for stable mounting inside the tank. The design also allows easy access to the impeller, filter sponge, filter media and the quartz tube of the UV lamp, so routine maintenance is quick and easy.
Main advantages: