Placeholder Penn Plax Cascade 300 Bio-Sponge Penn Plax Cascade 300 Bio-Sponge Penn Plax Cascade 300 Bio-Sponge
Penn Plax Cascade 300 Bio-Sponge
Penn Plax Cascade 300 Bio-Sponge
Penn Plax Cascade 300 Bio-Sponge
Penn Plax Cascade 300 Bio-Sponge
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Penn Plax Cascade 300 Bio-Sponge

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$16.99
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$16.99
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The Replacement Bio-Sponge for the Penn Plax Cascade Internal Filter optimizes colonization of beneficial aerobic bacteria and removes ammonia and nitrites.

  • Quick and easy to replace
  • Convenient, no-fuss replacement sponge
  • Replace monthly for optimum water quality

Specifications: Fits Penn-Plax Cascade 300 Internal Filter