Profile: Tristel PLC Ltd. is a provider of chlorine dioxide technology for water treatment services. Our chlorine dioxide solution is used in potable water treatment, Legionella control, and biofilm removal in water systems. Our chlorine dioxide sachet contains two part burstable sachet ClO2 activated in a sealed compartment. Its features include: instant activation, safe & easy to use, ready dose, no complex dilution charts, freshly prepared every time, delivering maximum efficacy, efficient & safe storage, and transportation.