Specifically designed for the Fluval U3 filter, the U3 Bio-Foam Pad captures large particles and debris for effective mechanical filtration.
Part# A486
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Mechanical filter media
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Fits perfectly inside the filter chamber to prevent debris from escaping
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Ideal pore size allows efficient water flow, less clogging and long-lasting filtration
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Suitable for freshwater, saltwater or reptile environments
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Convenient 2-pack format