Features:
1.Made from high quality nylon mesh material and a welded plastic ring all aquarium safe materials.
2.For use in marine, tropical and freshwater aquariums.
4.This filter sock can be cleaned and reused many times by simplan out detritus from the material. 4.Perfect for using on your return pipe in your sump tank 5.Ring width: 4 Inches 6.Length: 9"(short) and 15"(long) for your choice 7.Micron rating: 100micron (0.1mm) and 200micron (0.2mm) for your choice - 1x AQUARIUM NYLON FILTER SOCK your choice.

- 1x AQUARIUM NYLON FILTER SOCK