Grech CUP 807 – 3‑in‑1 internal filter with UV
Internal 3‑in‑1 filter for 100–500 l aquariums, combining mechanical, biological and chemical filtration…
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The SunSun CUP-807 is an internal filter for aquarists who want mechanical, biological and chemical filtration together with UV-C sterilisation in one unit. It is rated for aquariums of 100–500 l and is aimed at keepers who want to limit algae, pathogens and mould without adding a separate UV device.
Why it matters
- The 7 W UV-C lamp has its own switch, so its run time can be adjusted to control water quality. The lamp bulb is standard and can be replaced, and an indicator light on the housing shows that it is working.
- A cylindrical sponge serves as the first mechanical stage. A ceramic biological insert with a highly porous structure breaks down NH3, NH4 and NO2.
- Each media insert sits in its own container, so cleaning and replacing media is straightforward. There is also a dedicated space for chemical media placed directly beside the biological insert.
- The outlet rotates through 180°, and the air inlet has adjustable output for additional aeration. The unit is fully submersible and mounts with a three-suction-cup holder.
Specifications
- UV lamp power: 7 W
- Pump power: 10 W
- Maximum flow: 700 l/h
- Dimensions: 7.6 x 9 x 26 cm
- Weight: 1 kg
- Recommended aquarium volume: 100–500 l
What it works with
The CUP-807 suits freshwater aquariums in the 100–500 l range, where it can run as the main filter with mechanical, biological and chemical stages plus UV sterilisation. The 700 l/h flow and 180° outlet make it workable in setups where water movement needs to be directed. Its UV lamp is best matched to tanks where the owner wants to control water clarity and limit algae or pathogens.
Technical specification
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Frequently asked questions
It combines mechanical filtration with a cylindrical sponge, biological filtration with a highly porous ceramic insert that breaks down NH3, NH4 and NO2, and a space for chemical media placed next to the biological insert. The filter also includes UV-C sterilization.
It is dedicated to aquariums from 100 to 500 litres. Its maximum flow is 700 l/h, and it is powered by a 10 W pump.
Yes, the 7 W UV lamp has its own separate switch, so you can adjust how long it operates. The housing has an indicator light that shows the bulb is working correctly.
The filter is fully submersible and has a sturdy holder with three suction cups. The water outlet can be turned within a 180-degree range.
Each filter media insert has its own separate container, so cleaning or replacing them is simple. The UV lamp uses a standard bulb that can be replaced when needed.
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