Replacement Filter Cartridge for the Oase BioStyle Set of 4

• The Replacement Filter Cartridge Set of 4 for the Oase BioStyle 20, 30, & 50 and BioStyle Thermo 30 & 50
• 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 that fit inside the chamber of the BioStyle filter. The 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 a surface area for beneficial bacteria
• Stages 2-4: Chemical Media Mix – Contains carbon, zeolite, and phosphate binder, that work together to remove odors, impurities, and harmful nutrients from the water
• Stage 5: Filter Fleece – Traps extremely fine debris for a water polishing effect
• Changing the filter cartridge –  filter cartridge should be replaced after 4-6 weeks, depending upon aquarium size, number of fish and plants, and declines in filter performance
• Rinse cartridge with water before use – do not open the cartridge

Four multi-stage filter cartridges