Clear Blue Water

The advanced formula in our chlorine tab sanitizes, clarifies and kills algae for beautiful, clean and clear water all season.

Slow dissolving, long lasting

Sun protected for longer chlorine life, HTH™ 3” Chlorine Tabs Advanced dissolve slowly and last up to one week.

Compatible with all pools

This chlorine tab is great for all pool types including vinyl-lined pools and salt water systems.

You’re all clear with HTH™

For best results, use HTH™ 6-Way Test Strips twice weekly to test and balance your swimming pool water and keep chlorine levels between 1 and 4 ppm.

1. Place Tab(s) In Feeder, Floater or Skimmer

One tab treats 10,000 gallons of water. Do not add tabs directly to the pool as this could damage surfaces.

2. Repeat Weekly

For best results, replace your tab every week or as often as needed to maintain a chlorine residual of 1-4 ppm.