Prosponge 20 Carbon Biosponge

Deep Blue Professional - ProSponge System 20 Carbon Sponge. This carbon-treated sponge media provides mechanical, biological and chemical filtration in a single unit. It traps organic particles and debris and absorbs odors, discoloration and toxins while aiding in the colonization of beneficial bacteria. Fits System 20 and other sponge filters with 1" arbor