Seachem Filter Sock 200 micron welded 17.5 x 40.5 cm

Filter socks are a critical component in maintaining water quality in aquariums. They remove suspended debris and detritus, which often lead to excess dissolved organics, nitrate, and phosphate when left unchecked. This makes Seachem Filter Socks an integral addition to any sump and overflow system. Large: 17.5 x 40.5 cm / 7” x 16” (17.5 cm / 7” plastic collar)