SUNSUN External aquarium filter 9W UV 2000 l/h HW-704B

The SUNSUN HW-704B is an external aquarium filter with a built-in 9 W UV-C lamp, designed for freshwater and marine aquariums of up to about 600 litres. With a flow rate of 2000 l/h, it keeps the water clear through mechanical, biological and chemical filtration, while the UV-C lamp helps limit the growth of algae and free-floating microorganisms.

The unit uses a four-stage filtration system with room for sponges, filter wadding, ceramic rings and bio balls, which give beneficial filter bacteria a place to live. The easily accessible pre-filter stops coarser debris from clogging the deeper filter layers and makes routine maintenance simpler.

Rotatable hose connections let you position the filter beside or below the tank, so it adapts to the space you have. A quick-connect multifunction valve allows the hoses to be disconnected without draining the whole filter, and the hand pump makes the initial start-up easier.