OASE BioMaster External Filter for Aquariums up to 70 gallons, Multi-stage Filtration, Easy Maintenance Prefilter, Quiet Canister Filter, German Engineering

The biomaster line of premium external filters are perfect for marine and freshwater aquariums. The biomaster 250 boasts 4-stage filtration in a compact design. Biological, mechanical, chemical, and prefiltration all work together to provide your aquarium with optimal water quality and clarity. The biomaster filters are designed with sealed filtration pathways to ensure water flow is getting the full benefits of prefiltration, filter media for clearer water, hel-x biomedia provide a large suspended settlement surface for microorganisms, and activated carbon for ideal nutrient reduction and removal of toxins. The easy clean pre-filter module can be removed and cleaned separately from the rest of the filter for high efficiency and to extend the life of your filter. The water flow Can easily be adjusted on both the inlet and outlet adapters for the filter. Created for convenient placement under the aquarium. Install the included diffuser and spray bar for uniform surface movement and additional dissolved oxygen for ideal water quality. This filter Also features a N handle for simple moving and maintenance. This energy-efficient design includes a self-priming function for easy operation on startup and after cleaning. Includes a shut-off automation with built-in check valve to prevent leakage when cleaning the filter. Designed using German engineering and manufactured in Italy, this quiet operating filter is supported by an included 3 year warranty with a free 1 year warranty extension with online product to customize your pre-filter by combining coarse, Fine, ultra Fine, and activated carbon filter foams.

• 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
• The sealed filtration pathway allows you to get the full benefits from all 4-stages of filtration
• The easy clean prefilter module can be removed separately from the rest of the filter for simple cleaning and to extend the life of your filter
• All Life Stages