The Seachem Zip Bag Large Mesh is a robust and convenient mesh bag designed to securely hold various filtration media within your saltwater aquarium or pond filtration system. It provides an organized and efficient way to deploy chemical or biological filter media, preventing loose particles from entering your display tank while allowing optimal water flow.

Measuring a generous 19 x 17 inches (48 cm x 43 cm), this large zip bag can easily accommodate up to 18 liters of filtration media. It features a durable, corrosion-proof zipper, ensuring long-lasting performance and easy access for media changes without the worry of rust or degradation in a marine environment.

This zip bag is particularly well-suited for larger filtration media, making it an ideal choice for biofiltration products like Seachem Matrix and Pond Matrix. Its expansive size and secure closure provide an efficient and tidy way to manage essential filter media, promoting optimal water clarity and biological balance in larger reef tanks and sumps.