Cascade 600 Bio Sponge Cascade Bio Sponge for Internal Filters

$13.39 USD
Free shipping. Usually ships in 1-2 business days. 30-day postage paid returns.
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Convenient, no fuss replacement cartridges for your Cascade 300, 400 and 600 internal power filter.Optimizes the colonization of beneficial aerobic bacteria.Easy to replace disposable filters.