NT Labs Filter Media Bags

The clips that come with these bags hold them securely to the filter rim, and the fine mesh is tight enough that I don't lose any carbon dust. They've made swapping out my media a breeze.

I've been using these bags to house activated carbon in my canister filter, and the included clips keep everything securely closed even during water changes. The polyester mesh is fine enough to trap dust but lets water flow through easily.

These bags are so much easier to deal with than my old loose media setup. The fine mesh holds the carbon perfectly without any cloudiness, and the included clips keep everything sealed tight inside the filter.