Perfect for using on your return pipe in your sump tank;Filter sock is made from high quality nylon, and can be cleaned and reused many times;Ring width: 4 Inches;Length: 9(short) and 15(long) for your choice;Micron rating: 100 micron (0.1mm) and 200 micron (0.2mm) for your choice

• 200 MICRON 9 Length NYLON FILTER SOCK AQUARIUM MARINE
• 200 Micron 9" Length

200 MICRON 9 Length NYLON FILTER SOCK AQUARIUM MARINEMicro Trader