Compatiable Foam and Carbon Rings Set Replacement for All Biorb Aquariums, Carbon Filter* 10 Pack, Foam Filter*10 Pack, Air Stone*6 Pack

Compatiable Foam and Carbon Rings Set Replacement for Biorb Aquariums, such as Flow/HALOSeries 15 Acrylic 4-Gallon Aquarium. Package includes 10 Pack Carbon Filters, 10 Pack Foam Filters & 6 Pack Air Stone. It is suggest to replace compatible foam and carbon rings every 4 to 8 weeks. Our filters aims to maintain a healthy environment for your aquarium. If you have any questions about the product, feel free to contact the Beaufan team at any time, and we will address your needs as soon as possible.