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  1. Oase Biomaster External Canister Pre Filter Foams - 30, 45 or 60ppi

    Finest-Filters 6 pack replacement filter pre filter foams compatible with the Oase Biomaster external aquarium filters.

    We stock all 3 grades of pre filters – 30ppi brown, 45ppi blue or 60ppi black. Please select the option required from the drop down menu when ordering.

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    As low as £12.99
  2. Compatible Oase Biomaster External Filter Foam 20ppi Coarse Blue / 30ppi Fine Red

    Finest-Filters replacement filter foams compatible with the Oase Biomaster external aquarium filters.

    We stock both the coarse 20ppi blue foam and fine 30ppi red foam.

    We also offer a cost saving pack consisting of both foams. Please select the option required from the drop-down menu when ordering.

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    As low as £4.99

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Oase Biomaster Filter Media