Replacement 4 inch Filter Socks
Sewn Construction, with 4" ring.
Available in 100, 200 300 microns
Two lengths: 8.5" and 13"
Material: 100 and 200 microns are made of glazed Polyester Felt.
300 microns are made of Polyester Mesh.Made in the USA by Peco Facet, a Clarcor Company. Very high-quality material.
Filter socks are the most convenient form of mechanical filtration. They remove excess food, detritus, organic waste, dust, and other particulates. Removing these particulates from the water column will reduce the amount of organic matter that produces ammonia and other undesirable substances in the aquarium. Filter socks also help prevent larger objects, such as sand, crabs, snails, etc. from damaging pump motors. Regular filter sock use will lower organic levels and result in CRYSTAL CLEAR WATER!