This specially designed check valve is being used successfully in thousands of locations throughout the United States and Canada.
This device is used in Sinks, Water Closets, Floor Drains etc. to stop the backflow of suds, floods & sewage in homes, office buildings, basements, condos, lower level apartments, public housing projects, etc.
Easily installed in existing or new plumbing fixtures as necessary to prevent the backflow of suds, water and sewage in homes or high-rise buildings.
The check valve does not interfere with the water closet, sink trap, or vents.
Its only function is to prevent suds and sewage overflow from entering the room.