HTH™ Pool Care 3" Chlorine Tabs Ultra: 3 Inch Chlorine Tabs

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Keep your pool water clean, clear and comfortable with this all-in-one 3 inch chlorine tabs and shock treatment. It kills algae and bacteria while softening, clarifying and guarding surfaces from stain and scale for an amazing value—and sparkle!

  • All-in-one 3 inch chlorine tabs
  • Sanitizer, clarifier, algaecide and water softener
  • Use in floater, feeder or skimmer basket
  • Tabs last up to 1 week

Slow dissolving, long lasting

HTH™ 3” Chlorine Tabs Ultra dissolve slowly and last up to one week for longer chlorine life.

Compatible with all pools

Our 3 inch chlorine tabs are great for all pool types including vinyl-lined pools and saltwater 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.

How to use

HTH™ 3" Chlorine Tabs Ultra: 3 Inch Chlorine Tabs

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.

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

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