HydorActivated Carbon Freshwater Professional External Canister Filter Media – Low Ash Content for Fresh Water Aquariums – Produces Crystal Clear Water – Includes Mesh Bag – 100 GM Pouches – 3 Count

Great product; will order more later this year.

Love the new flexible 'cloth' containment mesh. MUCH easier to fit into filter system. Thank you Hydor!

They are pretty small

it's a little small for a hydor canister but it works

It's hard to gush about activated charcoal, but what I can say is the product is exactly as advertised, the order was fast and easy, and the price actually beats most brick & mortar stores in the area.

Good quality

I ordered this for my Hydor 250 cannister filter and followed the directions on where to insert it (above the top sponge), but it wouldn't properly fit no matter what I tried. The shape of the bag wasn't really appropriate for the space remaining in the filter making the seal difficult to achieve, and it made the bead-sized leaks already coming from the filter even worse.Removed it & feel like I wasted my money, and ended up returning the filter itself for other leak problems.Perhaps I did something wrong, but I feel like a "Hydor carbon for cannister filter" should fit in a Hydor cannister filter, you know?

Fit the filter i ordered it for Hydor Professional 350 Canister Filter, 280 GPH , but the filter its self arrived broken, so we sent it back and now have no need for the media, but im sure it would have been fine had we been able to use it.

Buono il filtraggio

Buen producto