Key Features:

• Designed for use with the Oase BioStyle Hang On Filter range
• 5 Stage disposable filter cartridge
• Provides mechanical, biological and chemical filtration
• Large surface for bacteria colonisation
• Replace every 4-6 weeks
• Replacement cartridges are available in a 2-pack or 4-pack

BioStyle Disposable Cartridge – 3 Stage Filtration:1) 45 PPI Filter Foam: Traps debris and waste whilst also offering surface area for beneficial bacteria.2) Carbon, Zeolite & Phosphate Binder: Helps remove odours, impurities, and harmful nutrients.3) Filter Fleece: Traps extremely fine debris to greatly enhance water clarity.The Oase BioStyle Filter Cartridge should ideally be replaced every 4-6 weeks, dependant on aquarium volume, number of fish and plants, and any noticeable decline in filter performance.