OASE Indoor Aquatics Filter Foam Biomaster Color:Orange 300ppi Bowl is 3" in diameter

Bowl is 3" in diameter with a step ramp down to 1

Durable and Reliable: Built from high-quality materials

Shelf-stable

Antioxidants to help support strong immune systems

other products use an inferior paper by-product known as "sludge

OASE Indoor Aquatics Filter Foam Biomaster Color:Orange 300ppi Bowl is 3" in diameterThe 20 Ppi Replacement Filter Foam For The Bio Master 250, 350, Or 600 Includes An Ultra Coarse Replacement Filter Foam Customize Your Choice Of Filter Foams To Meet The Needs Of Your Aquarium Timing To Replace The Filter Foam Varies Upon Aquarium Size And The Number Of Fish And Plants Package Dimensions: 10. 04" L X 2. 05" W X 12. 09" H