The strongest bacteria fighter with powerful granules that is extremely easy to use. Brominating Concentrate is applied in the correct amount while the pump is running. This "one-step" product is used as a regular sanitizer and as an oxidizer to rid the spa of odors and undesirable compounds. One step fast dissolving brominating granules Acts as a sanitizer and an oxidizer; no need for two products May be added directly to spa, no predissolving needed Details 82.5% sodium dichloro-s-triazinetrione • 14.7% sodium bromide • pH~4.5 • One step fast dissolving brominating granules • Acts as a sanitizer and an oxidizer; no need for two products • May be added directly to spa, no predissolving needed Powerful granules kill bacteria and are extremely easy to use. No need to pre-treat with bromide salts. No need to add oxidizers to activate it. This "one-step" product is used as a regular sanitizer and as an oxidizer to rid spas of odors and undesirable compounds.