OASE Indoor Aquatics BioStyle Replacement Filter Cartridge Set of 4, Black

Material Carbon Fiber Product Dimensions 7.36"D x 3.03"W x 4.25"H External Testing Certification ANSI, NSF Product Benefits Removes Impurities, Improves Water Quality Brand OASE About this item 5-in-1 Filtration – The BioStyle Multi-Stage Filter Cartridge provides 5-in-1 filtration which ensures clean, healthy, and clear water for your aquarium. No Mess Maintenance – the disposable filter cartridges are easily removed and replaced. Contains four replacement cartridges – fit inside the chamber of the BioStyle Power Filter series. Quantity needed depends on the size of the filter. Each Multi-Stage Cartridge includes a filter foam, chemical media mix and filter fleece. Stage 1, Filter Foam – 45 ppi filter foam traps debris and waste and offers surface area for beneficial bacteria.