severn trent 8101-Gus 7 ultraviolet water sterilization System. 7 GPM. New.
severn trent 8101-Gus 7 ultraviolet water sterilization System. 7 GPM. New. The Severn Trent 8101-GUS (Ultra Dynamics 8101-GUS series) is a whole-house ultraviolet (UV) water sterilization system designed to treat water at a flow rate of 7 gallons per minute (gpm). It neutralizes waterborne bacteria, viruses, and microorganisms without the use of chemicals.