The Seachem Medium Zip Bag is a high-quality mesh bag designed to securely hold various types of filtration media within your saltwater aquarium's filter system. Its primary purpose is to contain media while allowing for excellent water flow, ensuring your chosen media works efficiently to purify the aquarium water. This bag simplifies the process of adding, removing, and replacing filter media, making routine maintenance cleaner and more manageable.

This durable bag measures 32 cm x 14 cm (12.5" x 5.5") and can easily accommodate up to 1 liter of filtration media. A key feature is its convenient and corrosion-resistant zipper, which prevents accidental spills and is safe for both freshwater and saltwater environments. The mesh size is specifically engineered to hold intermediate and larger-sized filter media, making it compatible with popular products such as PhosGuard, MatrixCarbon, SeaGel, de❊nitrate, Renew, Matrix, and Zeolite.

This product is ideal for any aquarist utilizing granular or pelletized filter media in their sump, canister filter, or hang-on-back filtration system. Its robust construction and user-friendly zippered design make it a superior, reusable alternative to standard drawstring bags. For hobbyists seeking a reliable and hassle-free way to manage their chemical or biological filtration, the Seachem Zip Bag is an essential and practical accessory.