OASE BioMaster² Thermo 250 AU External Canister Filter (94693)

The OASE BioMaster² Thermo 250 is the next generation of OASE's best-selling BioMaster filter — now with integrated heating, smarter filtration, and effortless maintenance in one compact unit. Designed for aquariums up to 250 litres, it combines powerful four-stage multi-media filtration with a built-in HeatUp 150W adjustable heater — eliminating the need for a separate in-tank heater and giving your aquarium a clean, clutter-free look.

Whether you are running a freshwater community tank, a planted aquarium, or a saltwater setup, the BioMaster² Thermo 250 delivers whisper-quiet, energy-efficient performance you can rely on.

Key Features

• Integrated HeatUp 150W heater: Precise, adjustable temperature control housed inside the filter — no in-tank heater rod required
• Four-stage sealed filtration: Water is forced through all stages for maximum mechanical, biological, and chemical filtration
• EasyClean pre-filter module: Removable pre-filter cleans independently without disturbing the main filter chamber — extending media life and reducing maintenance time
• Hel-X Biomedia included: High-performance biological media maximises beneficial bacteria colonisation for superior biological filtration
• No-mess maintenance: Integrated safety locking handle, pre-filter safety valve, and check valve prevent accidental spills during maintenance
• Easy priming button: Just a few presses to fully prime the filter for fast, hassle-free startup
• Aquastop detachable: Detachable aquastop for easy filter movement without affecting the tubing setup
• Adjustable flow rate: Flow rate adjustable to suit aquarium size and stocking level
• Whisper-quiet operation: High-quality build with rubber feet to dampen vibration — ideal for living rooms and bedrooms
• Energy efficient: Powerful 900 l/h flow rate at just 15W filter power consumption
• Freshwater and marine compatible

What's in the Box

• OASE BioMaster² Thermo 250 external filter unit
• HeatUp 150W integrated adjustable heater
• Hel-X biomedia
• Filter sponges (multiple pore densities)
• Curved inlet and outlet tubes with inlet strainer
• Water distributor nozzle and spray bar with flow control
• 16/22mm hoses, fittings, heater adapter and heater plug
• Ready to use straight out of the box

Compatibility

• Suitable for: Freshwater and marine aquariums up to 250L
• Hose size: 16/22mm
• Heater: HeatUp 150W (integrated, adjustable)
• Power: 15W (filter) + 150W (heater) / 240V AU

Product Details

• Brand: OASE
• Model: BioMaster² Thermo 250 AU
• Product Code: 94693
• Type: External Canister Thermofilter with Integrated Heater
• Aquarium Size: Up to 250L
• Max Flow Rate: 900 l/h
• Max Head Height: 1.7m
• Filter Volume: 4.4L
• Pre-Filter Volume: 0.4L
• Filter Power Consumption: 15W
• Heater: HeatUp 150W (integrated, adjustable)
• Total Power: 15W (filter) + 150W (heater)
• Hose Size: 16/22mm
• Dimensions (W x D x H): 240 x 240 x 370mm
• Weight: 6.2kg
• Voltage: 240V AU
• Suitable For: Freshwater and marine aquariums

The OASE BioMaster² Thermo 250 is ideal for aquarium keepers managing small to medium freshwater or marine aquariums who want a premium all-in-one filtration and heating solution with outstanding media capacity, effortless maintenance, and whisper-quiet performance.