• Coarse Foam
• Reusable
• Fits all Filters

Coarse sponge pad is a replacement for throw away cartridges in aquarium filters. Not only are the cartridges costly, they are also bad for the environment. Coarse sponge pads can be reused for many years with normal use. With this porosity of the foam, they are nearly clog proof. They also filter out larger particles of waste before getting to your fine filter pads or bio rings.