OASE BioMaster (w/ Innovative PreFilter Function)- (250/350/600/850) - 3yr Warranty Hang On Filter Parts Even if the water looks

Even if the water looks clear it can be contaminated

has colorful packaging and a great price point

Rim connectors

Disconnect the adapter (A) from the motor by turning it counter-clockwise and remove the impeller from the chamber

OASE BioMaster (w/ Innovative PreFilter Function)- (250/350/600/850) - 3yr Warranty Hang On Filter Parts Even if the water looksThe OASE BioMaster series is an externally mounted aquarium canister filter with integral powerful pump. The filter is designed for fresh water or marine aquariums from up to 250L 850L. The BioMaster is designed and engineered in Germany and is packed with innovations to make the task of aquarium filtering as simple and efficient as possible. EasyClean pre filter chamber for extremely simplified filter cleaning and convenience Adjustable Heater HeatUp