Pond Koi Filter Media Bio Cell Similar to K3

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Used in Bio Media filtration processes around the world, Bio Cell filter media has been scientifically tested and frequently used in fish farming and waste water treatment for many years. This media is excellent quality and similar to K3 perfect for all fluidised moving/static-bed pond and aquarium filters, ideal for D.I.Y projects and conversions. Dimensions: 12mm (W) x 25mm Diameter Available in 3, 5, 10, 25, 50 litre portions (measured by bucket) - please select required size and volume using the drop-down menu. Show more