BioMaster 2 Thermo 350 External Filter

OASE BioMaster 2 Thermo 350 Canister Filter sets a new standard in aquarium filtration, designed for aquarists who demand top-tier water quality, dependable performance, and simplified maintenance. As the latest evolution in the BioMaster series, the BioMaster 2 Thermo 350 combines advanced filtration technology with an integrated heater for seamless temperature control and efficient, low-noise operation. This all-in-one filter solution is ideal for medium to large freshwater aquariums seeking powerful circulation and superior clarity.

The BioMaster 2 Thermo 350 features optimized flow pathways, including redesigned curved inlet and outlet tubes that enhance water movement and maximize filtration efficiency. Water travels through a sealed, multi-stage system — beginning with the EasyClean pre-filter, moving through dual foam levels, and finishing in high-capacity biomedia, providing robust mechanical and biological filtration. Constructed with premium components and equipped with vibration-dampening feet, the unit delivers exceptionally quiet performance for seamless integration into any space.

Designed with everyday convenience in mind, the EasyClean pre-filter module simplifies routine upkeep by allowing debris removal without hose disconnection or messy open-body cleaning. The built-in heater is integrated within the filter housing, reducing visible equipment in the tank while delivering stable, uniform temperatures that support healthy aquatic environments. With its combination of powerful filtration, intuitive maintenance features, and discreet heating, the BioMaster 2 Thermo 350 is the ultimate choice for hobbyists looking to elevate aquarium performance.

350 Specifications

Dimensions:  9.4 x 9.4 x 16.7 inches (240 x 240 x 425 mm), 14.3 lbs. (6.5 kg)

Rated Voltage:  120V / 60 Hz

Power Consumption:  16W (filter), 200W (heater)

Power Cord Length:  6 ft. (1.8 m)

Max. Flow Rate:  300 GPH (1100 LPH)

Max. Head Height:  5.9 ft. (1.8 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:  1.5 gallons (5.6L)

Pre-Filter Volume:  0.13 gallons (0.5L)

Recommended Aquarium Size:  90 gallons (350L)

Suitable for fresh and marine water

What’s Included

Aquarium Filter, HeatUp heater, five carbon pre-filter foams, one 30 ppi filter foam, three 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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