OASE BioMaster Grey Fish Filter

The BioMaster Thermo line of premium external filters reduces the amount of additional equipment seen in the aquarium by integrating the heater into the filter unit. Perfect for marine and freshwater aquariums, this filter boasts 4-stage filtration and is designed with sealed filtration pathways to ensure water travels the most efficient path through all filter media – creating optimal water quality and clarity. Water is first directed through the pre-filter’s activated carbon foams which remove toxins and odors, then into the main chamber with fine and coarse filter foams of differing pore densities and Hel-x Biomedia – all providing surface area ideal for the settlement of beneficial bacteria. The BioMaster filters are engineered with integrated safety locking features on the handle, pre-filter, and check valve in the inlet/outlet connection unit, ensuring no accidental spillage or messy maintenance. The EasyClean pre-filter can be removed and cleaned separately from the rest of the filter. Designed using German engineering and manufactured in Italy, this energy efficient filter is backed by a 3 year warranty that includes a free 1 year warranty extension with online product registration.