Oase BioMaster 2 850 Canister Filter 400 GPH

BioMaster 2 Canister Filters
Experience the next generation of our best-selling BioMaster filter—now reimagined as the BioMaster 2! With updated features, it’s our most efficient and user-friendly filter yet.

The BioMaster 2 offers a premium filtration solution that prioritizes performance, convenience, and quiet operation, making it the perfect choice for aquarists who demand the best for their aquatic environments.

Optimized Flow & Filtration
The BioMaster 2 features new enhancements, including curved inlet and outlet tubes, which result in improved water flow and filtration efficiency compared to the original BioMaster.

The updated features, combined with high-quality materials and rubber feet, help minimize noise for ultra-quiet operation.

The most convenient filter on the market!
The Easy Clean pre-filter module simplifies routine cleaning & extends the life of the main filter foams. Combined with the no-mess maintenance features, the BioMaster 2 minimizes the time & effort required to keep your aquarium pristine.

Superior water clarity
Experience crystal-clear water thanks to the optimized flow, sealed 4-stage filtration pathways (pre-filter, two foam levels, & biomedia), & customizable pre-filter options. The enhanced connection set further contributes to efficient water circulation.

Available with or without an integrated heater

Continuing the BioMaster family tradition, the integrated heater found in BioMaster 2 Thermo models ensures precise & uniform temperatures & reduces the amount of equipment visible inside the aquarium by housing the heater within the unit.

https://youtu.be/bTrluHYDp_w

The next generation of our best-selling BioMaster filter—reimagined with updated features, making it the most efficient and user-friendly filter yet.

The EasyClean pre-filter simplifies filter maintenance, improves efficiency, and prolongs the lifespan of the main filter foams.

Four-stage sealed filtration system forces water through various media to maximize beneficial bacteria growth and ensure thorough cleaning.

Easily integrate our HeatUp heater into the filter. Adding the heater to your canister minimizes the amount of in-tank equipment and protects inhabitants from direct contact.

Ideal for freshwater and saltwater aquariums

Aquascaper note:
Enhance All Biomasters with
aquaLife Vincon 9/16″ Tubing.
Glass Inflow and outflos by VIV and UP Aqua
aquaLife Bio Matrix See Video on ideal packing for these canister filters on the YouTube aquamanknox channel. https://www.youtube.com/watch?v=dP2ZwjQM2-0

Thermo Models Include UL Listed Oase Heaters. Non Thermal Units can add Oase Heaters as any time.
Biomaster Thermo 250 has a 150-watt heater
Biomaster Thermo 350 has a 200-watt heater
Biomaster Thermo 600 has a 300-watt heater
Biomaster Thermo 850 has a 400-watt heater

Biomaster 2 250 up to 70 gallons (250L)

Dimension 9.4 x 9.4 x 14.6 inches (240 x 240 x 370 mm)
Weight 9 lbs. (4.1 kg)
Rated Voltage 120V / 60 Hz
Power Consumption 15W
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

Biomaster 2 350 up to 90 gallons (350L).
Dimensions 9.4 x 9.4 x 16.7 inches (240 x 240 x 425 mm)
Weight 10 lbs. (4.5 kg)
Rated Voltage 120V / 60 Hz
Power Consumption 16W
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

Biomaster 2 600 to 160 gallons (600L).
Dimensions 9.4 x 9.4 x 19 inches (240 x 240 x 480 mm)
Weight 11 lbs. (5 kg)
Rated Voltage 120V / 60 Hz
Power Consumption 23W
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 n5/8 in. x 13 ft. (16 mm x 4 m)
Filter Volume 1.8 gallons (6.8L)
Pre-Filter Volume 0.16 gallons (0.6L)
Recommended Aquarium Size 160 gallons (600L)
Suitable for Fresh and marine water

Biomaster 2 850 aquariums up to 225 gallons (850L)
Dimensions 9.4 x 9.4 x 22 inches (240 x 240 x 535 mm)
Weight 14.3 lbs. (6.5 kg)
Rated Voltage 120V / 60 Hz
Power Consumption 25W
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)
Recommended Aquarium Size 225 gallons (850L)
Suitable for Fresh and marine water

Basket Cover (model # 75620)
Basket with Handles (model # 45171)
Basket without Handles (model # 45172)
Canister (model # 45159)
Carbon Pre-filter Foam Set (model # 49744)
Clip (model # 45158)
Filter Foam 20 ppi blue (model # 49602)
Filter Foam 30 ppi orange (model # 49604)
Filter Head (model # 49973)
Heater (model # 33803)
Heater Adapter (model # 46206)
Heater Plug (model # 45156)
Hel-X 13 BioMedia (model # 49608)
Impeller (model # 40399)
Inlet/Outlet Connection Unit (model # 45157)
Inlet Assembly Set (model # 97006)
Main Gasket (model # 45148)
Outlet Assembly Set (model # 97007)
Pre-filter Foam Set 10 ppi blue Set of 4 (model # 93003)
Pre-filter Foam Set 10 ppi blue Set of 6 (model # 93004)
Pre-filter Foam Set 30 ppi orange (model # 49626)
Pre-filter Foam Set 45 ppi blue (model # 49560)
Pre-filter Foam Set 60 ppi black (model # 49583)
Pre-filter Gasket (model # 45149)
Pre-filter Housing (model # 45157)
Pre-filter Pipe (model # 45163)
Priming Head (model # 45162)
Pump Cover (model # 45146)
Rubber Feet (model # 45170)
Tubing (model # 46496)
Underplate (model # 93136).