Oase Biomaster 2 (w/ Innovative PreFilter Function)- (250/350/600/850) - 3yr Warranty (New version!) faster flow !

★★★★★ 4.5 65 reviews

US$128.80
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US$128.80
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Free shipping Free 30-day returns

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Product details

Management number 235210050 Release Date 2026/07/02 List Price US$128.80 Model Number 235210050
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The Oase BioMaster 2 is the latest innovation in Oase aquarium filters and has been completely redesigned to meet the highest standards. With the proven EasyClean pre-filter module, cleaning the BioMaster 2 remains extremely easy and offers maximum convenience for aquarium owners. The carefully coordinated combination of highly effective biological filtration through Hel-X and mechanical-biological cleaning through filter sponges ensures healthy and clear aquarium water.

The BioMaster 2 filter impresses with optimized water-conducting elements with an increased diameter. A new inlet and outlet as well as an innovative pre-filter inlet contribute to the impressive performance of this filter. Thanks to the revised geometry, the external filter runs particularly quietly and does not disturb fish or aquarium viewers.

With up to 25% higher flow rate compared to the previous model, the BioMaster 2 offers powerful and efficient filtration. The optimized energy consumption during operation and the high filter volume make the BioMaster 2 the ideal choice.

What the News

  • Improved filter head design
  • Pre-filter pipe with higher permeability
  • Pre-filter sponges that require less frequent cleaning
  • Lower energy consumption
  • Redesigned in- and outflow
  • The Prefilter Module can be simply taken out, rinsed and reinserted.
  • Heater Ready - the HeatUp adjustable heater can be retrofitted later!
  • Made of premium quality materials and innovative engineering solutions.
  • Adjustable flow control, automatic safety locking mechanism.
  • Priming Pump - for a fast and easy filter startup (water intake).

Technical Data

OASE BioMaster 2 250

  • Suitable for aquariums up to maximum 250 l
  • Green Aqua recommendation: up to 100 liters
  • Dimensions (W x D x H): 240 x 240 x 370 mm
  • Power Requirements: 230 V, 50 Hz
  • Power Consumption: 15 W
  • Power Cable Length: 1,5 m
  • Net Weight: 5,34 kg
  • Warranty: 3 years
  • Maximum Flow Rate: 900 liters / hour
  • Maximum Head Height: 1,3 m
  • Connection for Hoses: 17 mm (16/22 mm hose)
  • Filter Volume: 4,4 liter
  • Pre-Filter Volume: 0,4 liter
  • Suitable for Freshwater and Marine Tanks!

OASE BioMaster 2 350

  • Suitable for aquariums up to maximum 350 l
  • Green Aqua recommendation: up to 130 liters
  • Dimensions (W x D x H): 240 x 240 x 425 mm
  • Power Requirements: 230 V, 50 Hz
  • Power Consumption: 18 W
  • Power Cable Length: 1,5 m
  • Net Weight: 5,67 kg
  • Warranty: 3 years
  • Maximum Flow Rate: 1100 liters / hour
  • Maximum Head Height: 1,4 m
  • Connection for Hoses: 17 mm (16/22 mm hose)
  • Filter Volume: 5,6 liter
  • Pre-Filter Volume: 0,5 liter
    Suitable for Freshwater and Marine Tanks!

OASE BioMaster 2 600

  • Suitable for aquariums up to maximum 600 l
  • Green Aqua recommendation: up to 220 liters
  • Dimensions (W x D x H): 240 x 240 x 480 mm
  • Power Requirements: 230 V, 50 Hz
  • Power Consumption: 22 W
  • Power Cable Length: 1,5 m
  • Net Weight: 6,18 kg
  • Warranty : 3 years
  • Maximum Flow Rate: 1250 liters / hour
  • Maximum Head Height: 1,8 m
  • Connection for Hoses: 17 mm (16/22 mm hose)
  • Filter Volume: 6,8 liter
  • Pre-Filter Volume: 0,6 liter
  • Suitable for Freshwater and Marine Tanks!

OASE BioMaster 2 850

  • Suitable for aquariums up to maximum 850 l
  • Green Aqua recommendation: up to 300 liters
  • Dimensions (W x D x H): 240 x 240 x 535 mm
  • Power Requirements: 230 V, 50 Hz
  • Power Consumption: 32 W
  • Power Cable Length: 1,5 m
  • Net Weight: 6,53 kg
  • Warranty: 3 years
  • Maximum Flow Rate: 1500 liters / hour
  • Maximum Head Height: 2,2 m
  • Connection for Hoses: 17 mm (16/22 mm hose)
  • Filter Volume: 8 liter
  • Pre-Filter Volume: 0,6 liter
  • Suitable for Freshwater and Marine Tanks!

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65 ratings | 27 reviews
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