Original ORC® and ORC Advanced® Filter Socks
Product
Some 13 years ago when Oxygen Release Compound (ORC®) was commercialized it was designed to be emplaced into groundwater using Regenesis Pure ORC® Filter Socks (filter socks). Filter socks are permeable, fabric sleeves filled with pure ORC® or ORC Advanced® material. Each filter sock is inserted into a colored, Naltex™ Flex-Guard for maximum durability. When hydrated, filter socks produce controlled release oxygen for periods of up to 12 months on a single application. The abundant oxygen is then readily available to facilitate the proven and cost-effective, enhanced aerobic biodegradation process.
Purpose
Filter socks are designed to deliver controlled release oxygen into a specific well or treatment area with the purpose of creating a very localized but effective accelerated aerobic biodegradation zone. Upon exhaustion of their oxygen supply (anywhere from 8-12 months) the socks can be removed and replaced.
Application/Installation
Filter socks can be inserted into new Regenesis, Application-Time-Saver Canisters or easily laced together using the pre-measured/ pre-cut rope that is supplied with each order (Figures 1, 2, 3 and 4).

Figure 1.
Sock lacing with
supplied rope
Figure 2.
Sock lacing with
supplied rope
Figure 3.
Lowering of rope
laced socks into well
Figure 4.
Schematic of filter
sock application
Construction
ORC and ORC Advanced Filter Socks are hand-made, permeable fabric sleeves, filled with pure ORC or more recently ORC Advanced. They are approximately 12” long and designed to fit 2”, 4” or 6” diameter wells.
Flex-Guard Durability
All sizes of Regenesis ORC and ORC Advanced Filter Socks include a factory installed, colored, Naltex™ Flex-Guard (green = 2”, yellow = 4” and orange = 6”). This component is designed to prevent rips or tears in the actual sock material assuring durability during the installation and removal process.
Availability
Regenesis ORC and ORC Advanced Filter Socks are always in stock and available for delivery worldwide.
