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OASE BioMaster 2 Thermo 250 External Filter with HeatUp 150
Model: BioMaster 2 Thermo 250 · US configuration
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The US Thermo 250 is a distinct external-filter configuration with an included adjustable 150 W HeatUp heater, a 70-US-gallon maximum label, 4.4 L total filter volume and a removable EasyClean pre-filter.
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Explore this buying guide ↗Why consider this model?
- A smaller Thermo-family external-filter assessment when the included adjustable HeatUp 150, exact US 120 V / 60 Hz edition, and documented beside-or-under installation suit the setup being considered.
Tradeoffs to weigh
- OASE publishes a maximum, not a lower-to-upper tank interval; its 66-gallon manual recommendation differs from the 70-gallon US ceiling and cannot be converted into a range. The 4.4 L field is total filter volume, not basket capacity, and current official flow/head figures are inconsistent. No high-waste rating is documented.
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