The Oase BioMaster 2 Thermo 850 is a high-capacity external canister filter designed for large freshwater and saltwater aquariums up to 850 litres. Featuring a built-in heater, this advanced filter system reduces clutter inside the tank while maintaining a consistent water temperature. With heavy-duty performance and a compact freestanding design, it’s ideal for aquarists needing efficient filtration and simplified maintenance.

This model includes a sealed 4-stage filtration path that utilises multi-density foams, Hel-X biomedia, and activated carbon to deliver excellent water clarity. Its EasyClean pre-filter module allows for fast removal and cleaning without needing to disassemble the entire unit. This feature also helps extend the lifespan of the main filter media and improves overall filtration efficiency.

The integrated heater is managed via bi-metal technology with thermal shutoff for safety, ensuring stable temperatures up to 93°F. Safety locks and a detachable aquastop mechanism help prevent spills and make maintenance clean and simple. This unit is supplied with essential accessories including inlet and outlet tubes, a spray bar with flow control, pre-filter module, and 6-foot power cords.

Please note: This item has been used for a short time. Hose has been cut into two 1-metre lengths. Original box not included.

Key Features:

• Supports aquariums up to 850 litres
• 4-stage sealed filtration with activated carbon and Hel-X biomedia
• Integrated heater for temperature control up to 93°F
• EasyClean pre-filter module for quick maintenance
• Spill-prevention design with detachable aquastop and safety locks
• Suitable for freshwater and saltwater tanks

This advanced canister filter combines power, safety, and convenience, making it a strong choice for aquarists who need dependable performance in larger tank setups.

Specifications:

• Capacity: 850 Litres
• Dimensions: 23.9L x 23.9W x 55.9H cm
• Installation type: Freestanding
• Power source: Corded Electric
• Weight: 16.4 Pounds
• Upper temperature rating: 93°F
• Max supported water TDS: 200 PPM
• Material: Plastic
• Pupurification method: Activated Carbon
• Model: BioMaster 2 Thermo 850
• UPC: 706759946773

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Klarna's credit products are provided by Klarna Bank AB, which is authorised and regulated by the Swedish Financial Services Authority, with limited supervision by the Financial Conduct Authority. More information can be found here.

Newpay finance options are provided through Deko’s platform by NewDay. P.D. Aquatics Ltd, t/a Aquacadabra is an Introducer Appointed Representative of Pay4Later Ltd, t/a Deko, which is authorised and regulated by the Financial Conduct Authority (ref no 728646) and is a credit broker, not a lender. NewDay Ltd is authorised and regulated by the Financial Conduct Authority (ref no 690292) and is authorised by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services (ref no 555318). More information can be found by clicking the newpay option above, or in the Newpay FAQs.

We really want you to be happy with the product that you've received. If however, when the goods arrive they're not what you want, then no problem - we have a 60 day no quibble return guarantee. Just let us know that you're going to return the item(s) by contacting us(stating your Order Number) and complete the returns packing slip that will have been included with your delivery. This will help us to quickly identify the item that you have returned (unopened and unused) - and we'll put a refund through for you.