The Oase BioMaster 250 filter is an interesting proposition for demanding aquarists for whom a large volume of filtration media and high pump efficiency is important.

Made of good quality plastic, where all elements fit perfectly. The filter is equipped with a large sponge pre-filter that can be easily cleaned without having to open the entire bucket.

Another advantage that distinguishes it from other filters is the possibility of installing a heater with power dedicated by the manufacturer in the filter.

The Thermo250 version filter has a 150W heater in the set. Another advantage is that the pump performance can be easily adjusted.

A solid handle also allows you to conveniently carry a flooded filter. The filter is equipped with filter media in the form of sponges of different porosity and the Oase patented biological filtration media called Hel-X. All media are in dedicated filter baskets.

The baskets can be easily removed and filled with any filter media in any order.

Technical data:

• Designed for an aquarium with a max. the capacity of 250 l
• Dimensions 240 x 240 x 370 mm
• Power 14 W + 150 W
• Length of the power cord 1.5 m
• Net weight 5.2 kg
• Flow 900 l / h Max.
• Water lifting 1.3 m
• Hose size 16/22 mm
• Media volume 4.4l
• The volume of the pre-filter is 0.4l
• Other filters are available for different size aquariums. Model 250/350/600 and 850.