Best Pool Chlorine Tablets of 2025

In The Swim's 3 inch chlorine tablets are a powerful and effective way to keep your swimming pool water sanitary. Made with 99% Trichloro-S-Triazinetrione (Trichlor) and 90% available chlorine, these tablets are sun-stabilized for outdoor pools and are individually wrapped for easy use. Customers have praised the tablets for their effectiveness and quick delivery, and have found them to be a great value for the price.

HTH Chlorine Tabs are advanced, individually wrapped tablets designed to protect your swimming pool and swimmers with one easy, convenient tablet. This product is a sanitizer, clarifier, and algaecide that sanitizes, clarifies, and kills algae for crystal clear water all season long. The slow-dissolving, long-lasting formula is sun-protected for longer chlorine life and lasts up to one week. HTH Chlorine Tabs are compatible with all pool types, including vinyl-lined pools and saltwater systems, and can be used in a floater, feeder, or skimmer basket. 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.

Keep your pool and spa water clean and clear with Clorox Pool&Spa XtraBlue Chlorinating Tablets. These tablets are designed to control algae and kill bacteria, while also preventing corrosion and scale buildup. The tablets also remove organic contaminants for clear and silky smooth water. Plus, they are protected against sunlight to last longer. With these tablets, you can enjoy a sparkling and refreshing pool or spa all season long.

XtremepowerUS Chlorine Tabs are a top-quality solution for your pool sanitation needs. Made with 99% Trichloro-S-Triazinetrione, these tablets are highly effective and ready to use in various dispensers. You’ll appreciate the convenience of fewer tablet changes, as each one can help save about 5,000 gallons of water. Plus, their versatility means they’re suitable for swimming pools, hot tubs, and even toilets. With built-in UV protection, these long-lasting tabs ensure that your pool remains clean and clear for longer periods, reducing the frequency of maintenance.

C3 3'' Stabilized Chlorine Tablets are 99% Trichloro-S-Triazinetrione with 90% Available Stabilized Chlorine. These tablets are individually wrapped and excellent for floating feeders, skimmers and automatic chlorinators. Due to state regulations, this item can only be shipped to AZ, CA, CO, CT, DE, FL, GA, IL, IN, KY, MA, MD, MI, MO, NC, NJ, NY, OH, OK, PA, TX, VA, WI.

Keep your pool clean and safe with Doheny's 3 Inch Swimming Pool Chlorine Tablets. These pro-grade pool sanitizers are made from 99% Trichloro-S-Triazinetrione and 90% stabilized chlorine, ensuring long-lasting and slow-dissolving chlorine distribution. Each tablet is pre-stabilized to prevent premature chlorine burn-off, making them last longer. The childproof locking lid provides safety for your family, and the individually wrapped tablets minimize odor, dust and skin contact. Simply place the tablets in your pool skimmer, floater, or feeder for easy chlorine distribution. Doheny's has been perfecting their chlorine formula for over 50 years, ensuring quality pool supplies.

The C3 Chlorine Tablets are designed to keep your swimming pool or spa clean and safe. With a slow-dissolving formula, each tablet ensures long-lasting chlorine levels, helping to maintain water clarity and quality. The inclusion of cyanuric acid protects the chlorine from being depleted by sunlight, allowing your pool to remain cleaner for longer periods. These tablets are easy to use, as they come individually wrapped, making it simple for you to add them to your pool’s chlorinator. One tablet can effectively sanitize up to 10,000 gallons of water, providing you with a hassle-free solution for pool maintenance.

The Rx Clear 3-Inch Individually Wrapped Chlorine Tablets are an affordable and efficient solution for keeping your swimming pool and spa clean and safe. These tablets are adaptable to your pool or hot tub, and easy to use. Each individually wrapped chlorinating tablet weighs 7 ounces, providing a long lasting effect. These slow dissolving, 90% available chlorine, 99% Trichlor tablets are UV protected and perfect for use as a bactericide, algaecide, and disinfectant. Rx Clear brand provides more available chlorine in each tab at a much lower cost compared to other brands. Trust Rx Clear to balance your pool and spa chemistry and keep your water safe and clear.

Clorox Pool&Spa XtraBlue Chlorinating Tablets are the perfect solution for keeping your smaller pool clean and clear. These 1-inch tablets kill bacteria and prevent all types of pool algae, while also preventing corrosion, scale, and stains. With long-lasting sunlight protection, these tablets are easy to use in feeders or floaters for weekly maintenance. They dissolve slowly and last longer, giving you control of the amount of chlorine in your water. Keep your pool beautiful with these multi-functional tablets.

Clorox Pool&Spa Active99 3” Chlorinating Tablets 35 lb. are a great choice for keeping your pool clean and safe. These tablets come individually wrapped, making them easy to store and use. They prevent algae and kill bacteria, and are suitable for use in skimmers, feeders, and floaters. Customers appreciate the high percentage of available chlorine in the tablets, though some find the individual wrapping to be messy.