Oase BioMaster 350 External Aquarium Filter

Sale price£224.99


The ultimate convenience among the external filters for aquariums. The external filter meets the highest demands in water filtration and filter cleaning. The combination of highly effective biological filtering with Hel-X and mechanical/biological cleaning with filter sponges ensures healthy and clear aquarium water. The BioMaster is suitable for aquariums with a volume of 250 to 850 litres. No complete cleaning needed: the EasyClean pre-filter chamber enables convenient filter cleaning. The automatic shut-off and safety lock prevent unwanted water leaks, e.g. when removing the pre-filter module. A practical venting button makes the water suction highly effective and allows for a quick and convenient start. The complete set includes filter media, hoses, adapters, suction and discharge pipes as well as the water diffuser. The BioMaster is available with or without an adjustable heater.

Key features:

  • EasyClean pre-filter chamber for extremely simple filter cleaning and top comfort
  • Available with or without integrated HeatUp adjustable heater for undisturbed views of the underwater world without visible technology, optimum temperature level, improved safety
  • Perfect water quality thanks to the high filter volume consisting of Hel-X and filter sponges


Suitable for aquariums up to max.


Dimensions (L x W x H)

240 x 240 x 425mm

Rated voltage

230 V / 50 Hz

Power consumption

18 W

Net weight


Guarantee (+ request guarantee)

3 years + 1

Max. flow rate

1100 l/h

Max. head height, metres


Filter volume

5.6 L

Pre-filter volume

0.50 L

Suitable for freshwater


Suitable for saltwater


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