ALEGI Media Filter Bag Aquarium Extra Fine Reusable 180 Micron Drawstring Mesh Filter Bags For Very Fine Resins Filter 7.5 Inches By 3.6 Inches 3 Pack

The ALEGI Media Filter Bag is an essential accessory for aquarium enthusiasts who demand pristine water quality. Specially engineered for extra-fine chemical filter media, these bags feature an ultra-dense 180-micron mesh design. They are perfectly optimized to contain very fine resins, such as premium organic scavenging resins and fine-grade activated carbon, preventing them from escaping into your water column. This ensures your expensive filtration media remains intact while protecting delicate pump equipment from loose particle damage. Crafted with heavy-duty stitching and durable, food-grade nylon, these bags are completely metal-free and corrosion-proof, making them entirely safe for both freshwater and marine fish. The secure drawstring closure provides a tight, reliable seal that eliminates the risk of bypass or media accidental ingestion by curious aquatic life. These strong, reusable bags can withstand repeated washing and bleaching, offering long-term reliability for custom sump setups, canister filters, and hang-on-back systems.