Oase BioMaster 850


1 in stock

Category: SKU: FI066


Oase BioMaster 850

External Aquarium Filter – For the Highest Demands

The Oase BioMaster is the ultimate convenience among aquarium external filters and 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 automatic shut-off and safety lock prevents unwanted water leaks and a practical venting button makes the water suction highly effective and allows for a quick and convenient start.

  • Made in Italy, backed by German engineering
  • Fresh and marine water compatible
  • UL certified filter
  • 3 year warranty

Oase BioMaster Video

EasyClean pre-filter module – Module can be removed separately from the rest of the filter. This reduces maintenance, increases filter efficiency, and extends the life of main filter foams. Customize the pre-filter with coarse 30 ppi, fine 45 ppi, ultra-fine 60 ppi, and activated carbon 45 ppi filter foams

No mess maintenance – Integrated safety locking features on the handle, pre-filter, and check valve in the inlet/outlet connection unit, ensure no accidental spillage or messy maintenance

Sealed filtration pathways – Allows for the full benefits of all four stages of filtration through this intuitive design

Hel-X Biomedia – An extremely large protected settlement surface (800m²/1000 liter) that allows beneficial bacteria to grow and thrive. The material is designed to stop floating as soon as it reaches a certain level of bacteria colonization.

Carbon pre-filter foams – Activated carbon absorbs unwanted substances in aquarium water. Carbon filter foams make replacement much simpler than using common granular carbon.

Adjustable flow control – Flow can be adjusted for the inlet and outlet in multiple locations on the filter assembly

Easy priming – Includes simple priming for fast and easy startup and continued operation

Quiet operation – Sound dampening design

Heater integration capability – Easily integrate an OASE HeatUp adjustable heater into the BioMaster canister (HeatUp not included)

What’s in the Box

Aquarium Filter
filter media
intake tube with inlet strainer
water distributor nozzle
spray bar
inlet and outlet adapters with flow control
tubing, fittings
heater adapter
power cable


Max aquarium size: 850L
Max water flow: 1500 l/hr
Max head height: 2.3m
Power: 25 watt
Filter Volume: 7.9L
Pre-filter Volume: 0.6L
Dimensions (mm): 240 x 240 x 560