Cobalt Aquatics Premium Reusable Media Bag 3" x 4" Three Pack
3x4 Mesh Bag Cobalt resealable media bags are available in 2 mesh sizes that are perfect to hold various type of filter media. The 200æ mesh is ideal for resins. Use the Fine mesh for activated carbon or fine grain materials and the coarse mesh for other chemical and biological media.
- 200 micron filter sock with string
- 3 inch x 4 inch
- It is re-usable
- Easy to clean