Grech CUP 805 – 3‑in‑1 internal filter with UV
Grech CUP 805 is a fully submersible internal filter with a 5 W UV-C sterilizer, combining mechanical…
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The SunSun CUP-805 is an internal 3-in-1 filter with a built-in UV-C sterilizer, designed for keepers of freshwater and aquatic setups in tanks of 100–350 litres. It addresses the common problems of algae growth, microbial contamination and nitrogen compounds by pairing a filtration stack with a UV-C lamp in a single unit.
Why it matters
- The 5 W UV-C lamp is intended to kill spores at both early and later stages of development, which the manufacturer links to limiting algae, disease and mould.
- The biological medium is a ceramic insert with a highly porous structure, which the manufacturer states breaks down NH3, NH4 and NO2.
- Each filter medium sits in its own separate compartment, so cleaning or replacing a medium does not require disassembling the whole unit. Space for chemical media is located directly next to the biological insert.
- The UV lamp has its own switch, so its operating time can be adjusted independently, and an indicator light shows that the bulb is working. The bulb is a standard part and can be replaced.
Specifications
- UV-C lamp power: 5 W
- Pump power: 10 W
- Maximum flow: 700 l/h
- Dimensions: 7.6 x 9 x 26 cm
- Weight: 0.9 kg
- Recommended aquarium volume: 100–350 l
- Outlet direction: adjustable within 180°
- Air intake: with adjustable output for additional aeration
- Mounting: fully submersible, secured with a handle and three suction cups
- EAN: 5903900049610
What it works with
The unit is matched to aquariums of 100–350 litres, where its 700 l/h maximum flow and combined mechanical, biological and chemical stages apply. The optional air intake allows the same filter to add oxygen to the water while it runs.
Technical specification
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Frequently asked questions
The filter is designed for aquariums from 100 to 350 litres and has a maximum flow of 700 l/h.
Yes, a ceramic insert with a very porous structure handles biological filtration and breaks down NH3, NH4 and NO2. A mechanical sponge placed first in the filter catches particles before that stage.
Yes, the UV-C lamp has its own switch, so you can control how long it runs. The housing also has an indicator light that shows whether the UV bulb is working correctly.
It is fully submersible and attaches to the glass with a sturdy handle that has three suction cups. The water outlet can be adjusted within a 180° range.
Each filter media has its own separate container, so cleaning or replacing them is simple. The UV bulb is a standard part and can be replaced when needed.
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