Tetra EasyCrystal FilterBox 300

Tetra EasyCrystal FilterBox 300

  • Internal filter with thoughtful design
  • Equipped with heater compartment
  • Easy to maintain
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The Tetra EasyCrystal FilterBox 300 contains the EasyCrystal 250 internal aquarium filter and is equipped with a heater compartment. The EasyCrystal FilterBox is a compact, space-saving complete set for optimum filtration of the aquarium water with the option of retrofitting a heater at a later date. Thanks to the replaceable filter cartridges, the filter is extremely easy to maintain.

Manual Tetra EasyCrystal FilterBox - - download PDF


  • An additional compartment allows the integration of an aquarium heater into the EasyCrystal filter box. Heater not included in the scope of delivery. Optimum fitting accuracy is offered by the Tetra Heater HT 50 .
  • The EasyCrystal Filter ensures crystal-clear, healthy water thanks to its intensive mechanical, biological and chemical filtration
  • Suitable for aquariums from 40 to 60 l
  • TÜV/GS tested
  • Mechanical filtration: Double-layer filter fleece for reliable removal of even the smallest suspended particles. White side = coarse pre-filter, green side = fine filter
  • Biological filtration: filter sponge and bio-filter balls with extra large surface area for the colonisation of useful bacteria.
  • Chemical filtration: special activated carbon to eliminate water discolouration and unpleasant odours.
  • Cleaning the EasyCrystal filter is extremely easy: replace the filter cartridge every 4 weeks. No more washing out the filter medium, no more wet hands!

Technical data

Tetra EasyCrystal FilterBox - 300
Max. flow rate 250 l/h
Power consumption 3,0 W


Tetra EasyCrystal FilterBox - 300
Length 150 mm
Width 135 mm
Height 265 mm
Length of connection cable 1.900 mm
Suitable for aquariums approx. 40 to 60 Liters



The orientation of Tetra (founded in 1951), one of the most traditional and at the same time most innovative companies in the landscape of German aquaristics, goes far beyond the production of feed for aquarium inhabitants. The perfect interplay of research and quality ensures the highest grades, even according to the IFS standards. Beside of the well known TetraMin or the popular water care products, Tetra offers complete aquarium sets and modern cabinets in 120 countries around the globe. Tetra has been shaping and influencing the modern world of aquaristics for over 70 years with its innovative strength like hardly any other company.

General information

Item no.
EAN 4004218151574
Weight 0,76 kg
Shipping weight 1,20 kg

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