Filter socks are designed for placement into existing wells and to deliver very localized controlled-release of oxygen to stimulate aerobic biodegradation. Upon exhaustion of their oxygen supply (anywhere from 9-12 months) the socks can be removed and/or replaced. ORC Filter Socks may be appropriate on some sites however in many cases the same project can likely be treated faster and more effectively with an ORC/ORC Advanced slurry injection. Please contact your Regenesis Representative for the most appropriate solution for your site.