Cascade Bio-Sponge for Internal Filters
Cascade Bio-Sponge for Internal Filters
Cascade Bio-Sponge for Internal Filters

Cascade Bio-Sponge for Internal Filters

Regular price $6.22 $0.00
Shipping calculated at checkout.

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



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