EW‑603B – external filter, 400 l/h
SunSun EW‑603B is an external filter with a 400 l/h flow rate and a 6 W pump, intended as the main filter…
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This external filter is intended as the main filtration unit for aquariums from 30 to 87 litres. It removes particles and supports biological filtration through its sponge and bioball media, and its transparent housing lets you check the media condition without opening the unit.
Why it matters
- Transparent housing: the 1.6 l chamber is visible from the outside, so you can monitor the media without opening the filter.
- Three sponge grades plus bioballs: the sponges trap solid particles and provide surface for bacteria, while the bioballs add a dedicated biological stage.
- External pump placement: the pump sits outside the aquarium, which leaves more space inside the tank.
- Four clamps and large hose valves: the cover is held down by four lever clamps, and the valves let you shut off the flow and detach the hoses from the unit for maintenance.
Specifications
- Brand / model: SunSun EW-603B
- EAN: 6971867500016
- Flow rate: 400 l/h
- Power consumption: 6 W
- Aquarium size range: 30 to 87 l
- Filter chamber capacity: 1.6 l
- Dimensions: 29 x 19 x 13 cm
- Weight: 1.7 kg
- Power cable length: 180 cm
- Housing and cover material: ABS
- Impeller: metal, suitable for use in seawater
What it works with
The EW-603B is designed for aquariums in the 30 to 87 l range and is supplied with a complete hose set, inlet with strainer and double outlet. The outlet can be fitted with a spray bar for additional aeration or a nozzle, and the strainer keeps fish, shrimp, plants and larger debris out of the filter.
Technical specification
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Frequently asked questions
Yes, this filter is designed as the main external filter for aquariums from 30 to 87 liters. Its 1.6-liter capacity supports good water quality in that size range.
The transparent housing lets you check the internal condition and how dirty the filter media is at any time. You don't need to open the filter just to inspect it.
The filter comes with sponges in three grades for mechanical filtration and bacterial growth, plus bioballs for biological filtration.
The pump is described as quiet and energy-efficient, with a metal impeller that is suitable for seawater. It runs on 6 W and has a 180 cm power cable.
The set includes a hose, an inlet with a strainer that keeps fish, shrimp and plants out, and a double outlet. The filter has large hose connections with valves, so you can close the water flow and disconnect the valves with the hoses attached when cleaning.
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