slide 1 of 1, Penn-Plax Bio Sponge Replacement, 1 ct
slide 1 of 1, Penn-Plax Bio Sponge Replacement, 1 ct

Penn-Plax

Penn-Plax Bio Sponge Replacement

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Convenient, no fuss replacement sponge for your Cascade 700 or 1000 Canister Filter optimizes colonization of beneficial aerobic bacteria and removes ammonia and nitrites.