Niniang 24 Packs of Filter Socks, 200 Micrometers, for Aquarium/Saline Aquarium, Pond, Sump/Overflow

Crystalline: 200 micrometer felt filter socks trap small organic matter and debris that larger filter socks or don't catch from to provide a crystalline. Excellent mechanical filtration: the use of filter socks improves the quality of the by trapping debris, detritus, excess food, sand, coral and more. REDUCES NOISE AND SPLASH in your aquarium/pond overflow sump system High quality professional quality: filter socks are designed to and strong. REUSABLE - mesh filters are EASY TO FILL AND EMPTY with a top zipper to keep the filter media safe. Our are , washable and reusable.