Seachem 夾鏈袋

The mesh is fine enough that I can use it for carbon without any dust escaping into the tank, and it holds up well after multiple washes.

The zipper seal closes firmly, and after three months of rinsing and reusing, there's still no fraying or wear. Perfect for keeping loose carbon or biomedia from escaping into the tank.

I’ve had these bags in my canister filter for three months now, and the zipper still slides shut cleanly every time even with wet hands. They rinse out fast under the tap, so swapping carbon or bio media takes me under a minute.