Superfish 濾材袋

The 15x25cm pair fit perfectly in my hang-on-back filter, and the mesh is tight enough to hold fine carbon without any dust escaping. They've held up through three water changes so far, which is more than I can say for the last cheap bags I tried.

The coarse 35x52cm bags handled the larger waste from my pond pump perfectly, and the seams held up well under constant water flow. I cut one open to check the stitching, and it didn't fray at all.

I needed a finer mesh to keep small debris out of my pump, and the 35x52cm coarse bag handles that perfectly while still allowing good water flow. The double stitching has held up nicely through several cleanings already.