Leslie's - 3 in Jumbo Chlorine Tablets - 1 lb Bag

Our chlorine tablets are of the highest quality, effectively controlling algae, bacteria, germs, and other microorganisms in your pool. For over 50 years, we have exclusively produced and controlled our unique, highly compressed formula in the United States. This compression ensures a slower, more consistent dissolve rate, providing long-lasting and even sanitization.

Stabilized Chlorine

Our 3" tabs consist of stabilized chlorine, meaning they are protected from the sun's damaging UV rays. This ensures the chlorine continues to do its job in the water rather than breaking down when exposed to sunlight.

Controls Algae, Bacteria and other Germs

For cleaner and safer water, each tab contains the highest amount of available chlorine which provides consistent sanitization by controlling algae, bacteria, and other microorganisms.

Long-Lasting 3" Tabs

We continue to control the entire manufacturing process of our proprietary formula which is densely compressed into our chlorine pucks for a slower, more even dissolve rate. You get superior, long-lasting, and more efficient tabs that provide proper chlorination.

No Fillers, Binders, or Glues

Ideal for chlorine floaters and automatic chemical feeders, our slow dissolving 3 inch jumbo tabs are the highest quality and have absolutely no fillers, binders, glues, or additives like many others. These additives cause tabs to dissolve too rapidly and don't provide a consistent distribution of chlorine. These fluctuating chlorine levels and inconsistent sanitization lead to quicker algae growth. Fillers, binders, glues, and other additives also increase the total dissolved solids in your water, which ultimately make the chemicals you use to maintain and treat your water less effective over time.

Strongest Available Chlorine Per Tab (90%)

Our Leslie's chlorine tabs are safe for swimming water while containing the highest grade of trichlor chlorine sanitizer with 90% available chlorine to control bacteria, algae, and other contaminants.

Trichloro-s-triazinetrione (Tri-Chlor) Active Ingredient (99%)

Leslie's chlorine pool tablets have the highest percentage of trichlor active ingredient available on the market. Along with our perfected chlorine tab manufacturing process, we ensure the utmost quality in each 8 oz. chlorinating tablet. The end result -- a chlorine tab with the most sanitizing effectiveness for safer and healthier swimming pool water.

Leslie's Pool Chlorine 101 Video

This Pro Tips video from Leslie's Pool Supplies will teach you about the crucial role of pool sanitization and how chlorine works as a sanitizer, oxidizer, and algae deterrent, all to help you achieve the perfect pool experience.