Seachem Filter Sock with Plastic Collar White 4in X 12in SM

Seachem Filter Sock an integral addition to any sump and overflow system. In addition to its 100 micron rating for exceptional particulate removal, it features welded seams, which, unlike threaded seams of similar products, will not breakdown over time. It has a singed finish, which reduces wear and prevents release of fibers back into the water column. Finally, the plastic collar simplifies installation and easily fits standard sump fittings.