Japanese Filter Mat

Koi Test

$ 74.99 

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Made from high quality material, with thick filaments and hard texture, that promotes the development of nitrobacteria, making it suitable as middle-laying filter material. They are available in sheets and can be cut to any size to fit your filter chamber. It is the best biological filter applicable for the Koi and garden pond!



  1. washable, recyclable many times
  2. firm, rigid, and sinking
  3. Sizes: 200cm x 100cm x 3.8cm; 200cm x 100cm x 2cm
  4. blue color