Fast Delivery-
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
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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
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Sealed filtration pathways – Allows for the full benefits of all four stages of filtration through this intuitive design
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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.
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Carbon pre-filter foams – Activated carbon absorbs unwanted substances in aquarium water. Carbon filter foams make replacement much simpler than using common granular carbon.
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Adjustable flow control – Flow can be adjusted for the inlet and outlet in multiple locations on the filter assembly
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Easy priming – Includes simple priming for fast and easy startup and continued operation
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Quiet operation – Sound dampening design
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Heater integration capability – Easily integrate an OASE HeatUp adjustable heater into the BioMaster canister.
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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, and power cable
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Made in Italy, backed by German engineering
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Fresh and marine water compatible
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UL certified filter
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3 year warranty plus 1 year warranty extension with online registration
| Specs | BioMaster 250 |
BioMaster 350 |
BioMaster 600 |
BioMaster 850 |
| 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 | 9.4 x 9.4 x 22 |
| Dimensions (mm) | 240 x 240 x 370 | 240 x 240 x 425 | 240 x 240 x 480 | 240 x 240 x 560 |
| Rated voltage | 120V / 60 Hz | |||
| Power consumption, filter | 15 watts | 16 watts | 23 watts | 25 watts |
| Power cord length | 6 ft. (1.8 m) | |||
| Net weight | 9 lbs. (4 kg) | 10 lbs. (4.5 kg) | 11 lbs. (5 kg) | 12 lbs. (5.4 kg) |
| Maximum flow rate | 250 gph (900 l/h) | 300 gph (1100 l/h) | 350 gph (1250 l/h) | 400 gph (1250 l/h) |
| Maximum Head Height | 5.6 ft. (1.7 m) | 5.9 ft. (1.8 m) | 6.6 ft. (2 m) | 7.4 ft. (2.3 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) | 2.1 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. | 66 gal (250 L) | 90 gal (350 L) | 160 gal (600 L) | 225 gal (850 L) |
| Suitable for | fresh and marine water | |||
| Works with | HeatUp 150 | HeatUp 200 | HeatUp 300 | HeatUp 400 |
| Warranty | 3 Years + 1 with online registration | |||
| Downloads | Quick Start Guide / Manual & Safety Information | |||
| Part Number | 55145 | 55146 | 55147 | 77116 |
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 250 |
BioMaster 350 |
BioMaster 600 |
BioMaster 850 |
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| 45 ppi Carbon Pre-Filter Foam | 4 foams | 5 foams | 6 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 250 |
BioMaster 350 |
BioMaster 600 |
BioMaster 850 |
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| 30 ppi Coarse Filter Foam | 1 foam | 1 foam | 1 foam | 1 foam |
| 20 ppi Ultra-coarse Filter Foam | 2 foams | 3 foams | 3 foams | 4 foams |
| Hel-X Biomedia (0.3 gal per unit) | 1 unit | 1 unit | 2 units | 2 units |
Andréas Pretorius (verified owner) –
It’s been 9 months and I have really enjoyed this Canister filter, easy to clean! They are expensive, but worth it. The build quality is amazing compared to other canister filters I have had before.