LARGE-HOLE 1/8-INCH MESH FOR LARGE MEDIA: These pond and aquarium media bags feature 1/8" (5,000 micron) mesh designed specifically for bio balls, ceramic rings, lava rock, and other large filter media. Not recommended for fine media such as GFO, carbon dust, or resins. DURABLE, REUSABLE CONSTRUCTION: Made from strong black mesh with reinforced stitching, these bags securely hold heavy biological media without tearing or stretching, even during repeated cleanings in ponds, sumps, or wet/dry filters. RUSTPROOF PLASTIC ZIPPER: Each bag includes a corrosion resistant plastic zipper that keeps large media contained while allowing water to flow freely through the mesh in both freshwater and saltwater environments. OPTIMAL WATER FLOW: The large hole mesh design ensures unrestricted flow, making these bags ideal for pond filters, sump chambers, wet/dry trickle filters, and other high flow applications where fine mesh would clog. CHECK YOUR SIZE BEFORE ORDERING: To reduce returns, please measure your pond skimmer basket, sump chamber, or media compartment to ensure the selected bag size fits your system. These Aquatic Experts Mesh Media Bags are designed for holding large biological filter media in both pond and aquarium filtration systems. Each bag is made from durable black mesh with 1/8 inch (5,000 micron) holes that allow strong water flow while securely containing large media such as bio balls, ceramic rings, lava rock, and other high flow filter materials. The rustproof plastic zipper provides a reliable closure that won’t corrode in freshwater or saltwater environments. Built for long term use, these media bags maintain their strength and shape through repeated cleanings, making them a dependable choice for pond filters, sump systems, wet/dry trickle filters, and other high flow applications. The large hole mesh is intentionally designed for large media and is not recommended for fine media such as GFO, carbon dust, or resins. Available in multiple sizes and pack counts, these reusable media bags make it easy to organize and maintain your filtration system. For best results, measure your pond skimmer, sump chamber, or media compartment before selecting a size.
