【20 Mesh Filter Bags】: Comes with 20 filter bags (10 black+10 white), enough for your daily use and replacement, improving water quality and filter media efficiency. Size: 15x20cm.

【Durable and Corrosion Resistant】: The filter bag is made of polyester. Not blocked by bubbles, odorless and safe for fish. Our plastic zipper is not easy to rust, will serve you for a long time.

【Large Space & Fine Mesh】: The zippered filter bags have more space than the drawstring ones. Convenient to change filter material and will not overflow. Approx.

【Strong Filtration Capability】: Aquarium filter bags help you filter impurities in your aquarium, purify water quality and prevent bacterial growth. Provide a better environment for aquatic life.

【Wide Use】: The filter bags are perfect for aquariums, gardens, fish tanks, swimming pools and ponds. Suitable for holding activated carbon, bio-ball, zeolite, pellets, gravel, ceramic rings or ammonia remover.