Seachem Filter Sock - 100 Micron - 4" x 12"

The Seachem Filter Sock — 100 Micron — 4" x 12" is a small, durable filter sock designed to help maintain the quality of water in aquatic environments. By catching and removing suspended dirt, debris and detritus, dissolved organics, nitrates, and phosphates will not be able to accumulate and build up harmful levels in the tank. The welded seams of the sock and plastic collar fits most standard sump fittings, making installation a breeze and ensuring a long, effective lifespan for the filter sock itself.