BioMaster Thermo 250/350/600

External Aquarium Filter - For the Highest Demands

  • Integrated heater – Provides precise and uniform temperature levels and reduces the amount of equipment seen inside the aquarium by housing the heater in the unit

  • 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

  • What’s in the Box – Aquarium Filter with an integrated heater, filter media, intake tube with inlet strainer, water distributor nozzle, spray bar, inlet and outlet adapters with flow control, tubing, fittings, heater adapter, and power cables

  • Made in Italy, backed by German engineering

  • Fresh and marine water compatible

  • UL certified filter

  • 3 year warranty plus 1 year warranty extension with online registration

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Specs BioMaster Thermo
250
BioMaster Thermo
350
BioMaster Thermo
600
Dimensions (in.) 9.4 x 9.4 x 14.6 9.4 x 9.4 x 16.7 9.4 x 9.4 x 19
Dimensions (mm) 240 x 240 x 370 240 x 240 x 425 240 x 240 x 480
Rated voltage 120V / 60 Hz
Power consumption, filter 15 watts 16 watts 23 watts
Power consumption, heater 150 watts 200 watts 300 watts
Power cord length 6 ft. (1.8 m)
Net weight 11.5 lbs. (5.2 kg) 12 lbs. (5.4 kg) 13.7 lbs. (6.2 kg)
Maximum flow rate 250 gph (900 l/h) 300 gph (1100 l/h) 350 gph (1250 l/h)
Maximum Head Height 5.6 ft. (1.7 m) 5.9 ft. (1.8 m) 6.6 ft. (2 m)
Connection fits 5/8" ID (16 mm)
Tubing 5/8 in. ID x 13 ft. (16/22 mm x 4 m)
Filter Volume 1.2 gal (4.4 L) 1.5 gal (5.6 L) 1.8 gal (6.8 L)
Pre-filter Volume 0.11 gal (0.4 L) 0.13 gal (0.5 L) 0.16 gal (0.6 L)
Suitable for aquariums up to max. 70 gal (250 L) 90 gal (350 L) 160 gal (600 L)
Suitable for fresh and marine water
Warranty 3 Years + 1 with online registration
Downloads Manual & Safety Information
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Part Number 55148 55149 55150

Pre-Filter Foams

The BioMaster series comes with 45 ppi activated carbon filters inside the pre-filter module. To optimize filtration OASE offers coarse 30 ppi, fine 45 ppi, and ultra-fine 60 ppi replacement foams to customize the pre-filter. All replacement pre-filter foams come in sets of six for your replenishment needs. Timing to replace the pre-filter foams varies upon aquarium size, number of fish and plants, and declines in filter performance. All BioMaster filter foams are compatible with any of the BioMaster models.

BioMaster
Thermo 250
BioMaster
Thermo 350
BioMaster
Thermo 600
45 ppi Carbon Pre-filter foam 4 foams 5 foams 6 foams
 

Filter Media

The BioMaster series comes with ultra-coarse and coarse filter foams as well as Hel-x Biomedia. Since the pre-filter will do most of the filtration, these main filter foams require less frequent changes. The quantity of each filter media in the unit depends on the size of the filter. Timing to replace the filter foams varies upon aquarium size, number of fish and plants, and declines in filter performance. All BioMaster filter foams are compatible with any of the BioMaster models.

BioMaster
Thermo 250
BioMaster
Thermo 350
BioMaster
Thermo 600
30 ppi Coarse filter foam 1 foam 1 foam 1 foam
20 ppi Ultra-coarse filter foam 2 foams 3 foams 3 foams
Hel-X Biomedia (0.3 gal per unit) 1 unit 1 unit 2 units