OASE BioMaster External Canister Filter

The OASE BioMaster Pro series offers powerful, professional-grade filtration for freshwater and planted aquariums. Designed with convenience and performance in mind, these external canister filters feature an EasyClean pre-filter module, allowing for effortless maintenance without disturbing your main filter media. With models suited for tanks up to 250 gallons, the BioMaster ensures crystal-clear water, healthy fish, and vibrant plants.

Key Features:

• EasyClean Pre-filter Module – Remove and rinse without opening the canister.

• Hel-X Bio Media – High-capacity biological filtration for optimal water quality.

• Integrated Heater (Thermo Models) – Optional built-in heater keeps your aquarium sleek and clutter-free.

• Quiet Operation – Engineered for near-silent performance.

• Secure Locking System & Self-Priming Pump – User-friendly setup and maintenance.

Whether you're building a lush aquascape or keeping a thriving community tank, the BioMaster delivers reliable and efficient filtration that grows with your aquarium.

Available models:

BioMaster Pro Thermo

250

Dimensions: 9.4 x 9.4 x 14.6 inches (240 x 240 x 370 mm)
Weight: 13.7 lbs. (6.2 kg)
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)
Max. Aquarium Volume: 70 gallons (250L)
Suitable for: Fresh and marine water

BioMaster Pro Thermo 

350

Dimensions: 9.4 x 9.4 x 16.7 inches (240 x 240 x 425 mm)
Weight: 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)
Max. Aquarium Volume: 90 gallons (350L)
Suitable for: Fresh and marine water

 

BioMaster Pro Thermo

600

Dimensions: 9.4 x 9.4 x 19 inches (240 x 240 x 480 mm)
Weight: 15 lbs. (6.79 kg)
Rated Voltage: 120V / 60 Hz
Power Consumption: 23W (filter), 300W (heater)
Power Cord Length: 6 ft. (1.8 m)
Max. Flow Rate: 350 GPH (1250 LPH)
Max. Head Height: 6.6 ft. (2.0 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: 1.8 gallons (6.8L)
Pre-Filter Volume: 0.16 gallons (0.6L)
Max. Aquarium Volume: 160 gallons (600L)
Suitable for: Fresh and marine water

 

BioMaster Pro Thermo 850

Dimensions: 9.4 x 9.4 x 22 inches (240 x 240 x 535 mm)
Weight: 16.4 lbs. (7.4 kg)
Rated Voltage: 120V / 60 Hz
Power Consumption: 25W (filter), 400W (heater)
Power Cord Length: 6 ft. (1.8 m)
Max. Flow Rate: 400 GPH (1500 LPH)
Max. Head Height: 7.4 ft. (2.25 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: 2.1 gallons (8L)
Pre-Filter Volume: 0.19 gal (0.7 L)
Max. Aquarium Volume: 225 gallons (850L)
Suitable for: Fresh and marine water