Red Sea Max Nano Thin-Mesh Filter Bag 225 Micron - 2 pack

Thin-mesh aquarium filter bags or socks as they are commonly referred to, are perfect for new setups and after heavy maintenance or whenever there is a lot of particulate matter in the water. They are also suitable as a holder for other mechanical or chemical filter media. The monofilament construction of these bags makes them very easy to clean. Each box contains 2 Filter Bags/Socks.