Subsurface Services manufactures an odor control unit that is installed underground. This eliminates odor complaints and unsightly odor control units in neighborhoods and communities. Our units are customizable to meet your specific needs. Our units are designed to hold more activated carbon than the above ground units which means you go longer between servicing them. Our units work on standard air release valves and combo valves. They can also be placed at discharge force main manholes and small lift stations, gravity manholes. Call us to see which unit best fits your needs.