[Regular replacement] - For best results, replace the filterevery 2 to 4 weeks.
[Effective filtration] - Captures , fish , heavy metals, odors, and discoloration, providing optimal filtration for a aquarium.
[Clean water for your fish] - Fish filter cotton replacement that provides clean water for your fish .
[Easy installation] - Simply rinse with cold water to remove toner and insert it into the filter slot, easily replaceable in a few seconds.
[ and materials] - Made from selected filter cotton and activated carbon materials, ensuring and use.

Spec:

Item Type: Filter Cotton
Material: Filter Cotton + Activated Carbon
Weight: Approx. 101g / 3.6oz
Product Size: Approx. 135x55mm / 5.3x2.2in

Package List:
6 x Filter Cotton

Note:
1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.
2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.