Shipping & Delivery Standard/Economy: $12.99; free standard shipping on eligible qualifying orders of $100 or more. Most in-stock orders process in 1–3 business days. Estimated standard transit is 5–12 business days after dispatch. Backorders, preorders, and special orders follow their stated lead times. Dates are estimates, and separate shipments may have separate charges. Review the Shipping & Live Arrival Policy and final charges at checkout. International rates and specialty charges are separate from domestic standard offers. Easy and Convenient Storage of Media Keep your filtration media organized and easy to use with Dymax Filter Media Bags. Perfect for holding bio balls, ceramic rings, carbon, GFO, and other filter media. Designed for convenience and efficiency, these bags allow proper water flow while keeping media securely contained. ✔ Ideal for bio media, carbon, and GFO ✔ Helps keep your filtration system clean and organized ✔ Durable, reusable mesh design ✔ Available in multiple sizes and mesh types to fit your setup Looking for a specific size or mesh type? Looking for a specific size or mesh type? We carry a wide range of Dymax media bags. If you don’t see what you need, reach out and we’ll help you find the right fit for your setup. Dymax Filter Media Bags are designed for easy and convenient use with bio balls, ceramic rings, carbon, GFO, and other filtration media. Made from durable, breathable nylon, they allow proper water flow while keeping media securely contained. ✔ Durable, reusable design ✔ Strong zipper closure ✔ Promotes healthy biological filtration ✔ Suitable for freshwater and saltwater aquariums Type Size Dimensions Fine Medium 18x25cm Extra Fine Medium 23x14cm