Aquarium Sponge Filter

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  • Penn-Plax Sponge Filter (ONF4)
    $29.97
  • Penn-Plax Replacement Bio-Sponge
    $8.68
  • Penn-Plax Penn Plax Cascade 610 Bio-Sponge Corner Internal Filter (CIF22)
    $35.97
  • Penn-Plax Filter Sponge (CPF510)
    $10.88
  • Penn-Plax Bio Sponge (CIF3FI)
    $12.33
  • Penn-Plax Penn Plax Sponge Bob Kit With Filter, 1.5 Gal, 2.5 Lb (SBK115)
    $35.97