Photo 1 of PROUDSCREW 30 Pack Replacement Filter Media Kit Compatible with Fluval 306/307 Aquarium Filters, Including Bio Ceramic Rings, Activated Carbon, Blue, White & Black Bio Foam Value Pack

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Photo 1 of PROUDSCREW 30 Pack Replacement Filter Media Kit Compatible with Fluval 306/307 Aquarium Filters, Including Bio Ceramic Rings, Activated Carbon, Blue, White & Black Bio Foam Value PackPhoto 2 of PROUDSCREW 30 Pack Replacement Filter Media Kit Compatible with Fluval 306/307 Aquarium Filters, Including Bio Ceramic Rings, Activated Carbon, Blue, White & Black Bio Foam Value Pack