BioMaster 2 Thermo 250 External Filter

OASE BioMaster 2 Thermo 250 Canister Filter delivers advanced external filtration designed for aquarists who value reliability, quiet performance, and easy maintenance. As the upgraded evolution of the popular BioMaster line, this premium canister filter features refined engineering, improved water flow, and an integrated heater for a cleaner, more streamlined aquarium setup. It’s an ideal solution for freshwater aquariums that require consistent temperature control and exceptional water quality.

The BioMaster 2 Thermo 250 is engineered with optimized flow dynamics, including redesigned curved inlet and outlet tubes that promote efficient circulation and enhanced biological filtration. A sealed, multi-stage filtration system directs water through a pre-filter, dual foam layers, and high-capacity biomedia to maximize mechanical and biological efficiency. Durable construction, precision fittings, and vibration-reducing rubber feet ensure ultra-quiet operation, making it suitable for living spaces and offices alike.

Routine maintenance is faster and cleaner thanks to the EasyClean pre-filter module, which allows debris removal without disconnecting hoses or opening the main filter body. The integrated heater is safely housed within the canister, providing even heat distribution while reducing clutter inside the aquarium. With its combination of powerful filtration, convenient upkeep, and built-in heating, the BioMaster 2 Thermo 250 offers a professional-grade filtration solution for serious aquarists.

Specifications

Dimensions:  9.4 x 9.4 x 14.6 inches (240 x 240 x 370 mm), 13.7lbs

Rated Voltage:  120V / 60 Hz

Power Consumption:  15W (filter), 150W (heater)

Power Cord Length:  6 ft. (1.8 m)

Max. Flow Rate:  250 GPH (900 LPH)

Max. Head Height:  5.6 ft. (1.7 m)

Tubing Connection:  5/8 in. ID / 0.87 in. OD (16 mm / 22 mm)

Tubing Length:  5/8 in. x 13 ft. (16 mm x 4 m)

Filter Volume:  1.2 gallons (4.4L)

Pre-Filter Volume:  0.11 gallons (0.4L)

Recommended Aquarium Size:  70 gallons (250L)

Suitable for Fresh and marine water

What’s Included

Aquarium Filter, HeatUp heater, four carbon pre-filter foams, one 30 ppi filter foam, two 20 ppi filter foams, Hel-X Biomedia, curved inlet and outlet tubes, inlet strainer, water outlet nozzle, modular spray bar with flow control attachment, tubing, heater adapter, heater plug, and power cable

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