Haviland Multishock Extra
- Multifunctional Shock
- Shock, Algaecide and stabilizer in one
- Swim in 15 minutes
- Controls algae and bacteria
- Will not cloud water or cause scale
- Quick dissolving
- Produces sparkling swimming pool water
- For use with all pool surfaces
- Adjust pH 7.2-7.6, Alkalinity 80-120 ppm
- Add 1 pound per 6,000-10,000 gallons. Weekly.
- Swimming can resume after 15 minutes or when chlorine levels are 3 ppm or lower.