slide 1 of 9, Penn-Plax Cascade Power Filter Bio-Sponge, 1 ct
slide 1 of 9, Penn-Plax Cascade Power Filter Bio-Sponge, 1 ct

Penn-Plax

Penn-Plax Cascade Power Filter Bio-Sponge

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Optimizes colonization of beneficial aerobic bacteria. Removes ammonia and nitrites keeping the aquarium healthy. Convenient, no fuss, replacement sponge slides into your existing frame.