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Save an extra 20% off your entire order with coupon code: MARCH20
*May exclude certain brands.
**May not be combined with any other offer.
Code expires Saturday, March 15th 2014
The Penn Plax Cascade Canister Filter Bio-Sponge keeps your aquarium water clean and clear. The Bio-Sponge also extends the life of carbon and biological media by trapping debris that would otherwise soil them.