BioMaster Thermo 850 an external filter that includes a heater it to both filter and heat a large fish tank
BioMaster & Thermo External Filters
BioMaster & BioMaster Thermo external filters by Oase are suitable for large aquariums. If you click 'yes' to a heater, this filter will come with an Oase HeatUp heater installed. If you choose 'no' to the heater, a HeatUp can be added later on, and fits neatly into the filter. See below for details of the heater wattage needed. HeatUp by Oase is the only recommended heater for use with this filter. The pump is energy efficient and quiet.
not rated £229.99£374.99 Select options This product has multiple variants. The options may be chosen on the product page