ALEGI 180 Micron Aquarium Filter Media Fine Mesh Bag, 8" by 4" Small Resin Filters Media Bags for Fish Tank (8"*4"(4Pcs))

Size: 8" * 4",180 microns fine mesh drawstring filter bags, Suitable for 100ML-200ML fine filter media. Specially designed for extra-fine filter media and activated carbon. Seal the bag securely. Our customized drawstring bag is tightly sealed to prevent loose media from potentially damaging the pump or the filter media being inadvertently eaten by the fish and harming the fish. The sturdy construction and heavy-duty stitching make these fine filter media bags strong and durable, so they can be washed and reused many times. High quality nylon mesh filter media bag, with no peculiar smell, are not affected by bleach, caustic or acid, and do not contain metal that may easily rust and pollute water, completely safe for fish.