The Bio master thermos 250 has an integrated heater in compact Filter design
External filter operates quietly to circulate and filter your aquarium water
Includes 4-stage filtration: biological, mechanical, chemical, and prefiltration
Hel-x, suspended Filter media, creates the optimal surface area for beneficial bacteria growth
Product Code: RBO55148Comes with TWO FREE bags of Inland Seas 6 oz Activated Carbon. OASE BioMaster Thermo 250 Canister Filter w/ Heater is perfect for marine and freshwater aquariums. This Filter is very unique as it has a Oase HeatUp 150 Watt Aq...
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