- Ideal for sanitizing and shock treating spa and hot tubs
- Destroys algae and bacteria, fast-acting and easy-to-use
- For excellent results, use HTH spa chlorinating granules as part of your regular HTH spa care routine
- First use HTH spa test strips to make sure the pH level in your spa water is between 7.2 and 7.8
- After your spa water is properly balanced, apply HTH spa chlorinating granules while the filter pump is running at night
- Additional Information: One-Size
- Net Content: 900 g
- pH Range: 7.2 to 7.8