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Cascade Bio Sponge Refill For 500 & 700 Filters

$6.89 $6.20
(You save $0.69)
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Product Description


Specially developed for the Cascade 500 and 700 Power Filters, the Bio-Sponge optimizes the colonization of beneficial aerobic bacteria and removes ammonia and nitrates. A great way to keep your turtle aquarium clean and healthy! The convenient, no-fuss, replacement sponge slides into your existing frame.