Q 2103 is a Cooling Water Microbiocide is good for algae and heterotrophic bacteria and fungi control. Q 2103 is a concentrated an oxidizing stabilized chlorine and bromine liquid EPA registered microbiocide. If you would like a Water Treatment Specialist to service your account and provide pricing, please fill out our "Request A Quote" form on our website or call our main office at (734) 247-4488. *NOTE: This product is for Commercial and Industrial Use Only.