Top 10 Best 3 inch chlorine tablets for pool in 2026

Main highlights

• •Cleans Water & Stops Algae: Kills harmful bacteria and prevents equipment corrosion, scale and stains. Kills and prevents all types of swimming pool algae (green, mustard, black)
• •Long-lasting sunlight protection: Contains chlorine stabilizer to extend the life of your clean
• •Creates Silky Smooth Feeling Water: XTRABLUE chlorinating tablets contain conditioners for silky smooth feeling water
• •Usage: Apply 2 tablets weekly to treat 10,000 gallons of water, add more tablets as needed to maintain adequate sanitation. Safe for all swimming pool surfaces, including vinyl, plaster, fiberglass, and tile.
• •Clorox Pool App: Test like an expert anytime, anywhere with the Clorox Pool App. Solve common swimming pool problems and get personalized product and dosage recommendations

Main highlights

• •Active Ingredients - Our pool tablets are pro-grade made from 99% Trichloro-S-Triazinetrione and 90% stabilized chlorine
• •Ready To Use - Size perfect for floaters, pool skimmer or any automatic feeder which bigger than 3 inch (Floating Tablet Dispenser Sold Separate ASIN: B07193P5HZ)
• •Saving Money - Having our chlorinating tablets, you don't need change the frequently, 1-tab helps you saving about 5,000 gallons of water
• •Versatile - The chlorine tabs are perfect for swimming pools, hot tubs, spa, hot spring pools, water parks, even for toilets
• •Long-Lasting Chlorine Tabs - Each tab is pre-stabilized against the sun's UV rays to prevent premature chlorine burn-off, making them last longer

Main highlights

• •keeping your pool clean
• •This product is great for all pool types
• •Slowing-dissolving and long-lasting
• •Ideal size for floaters or automatic feeders
• •Note: Packaging may vary

Main highlights

• •Active Ingredients:Each 3”chlorine tablets for pool contains 99% Trichloro-S-Triazinetrione with 90% minimum available chlorine
• •Clean Effectively: Kills bacteria and stops algae growth to keep your pool clean and clear all season long
• •Long-Lasting Protection: Ensure your pool remains effective with Profeliz chlorine tablets for pool even under direct sunlight exposure. Profeliz 3 inch chlorine tablets for pool are designed to dissolve slowly and last up to one week
• •Suitable for all pools : 3” pool chlorine tablets are great for all swimming pool types, including above ground and in-ground pools.Profeliz 3 in chlorine tablest for pool fit easily into most of pool skimmers, floaters or other chlorinating devices
• •Warm Reminder: Please note that some chlorine tablets may be cracked or broken in their individual packages due to carrier handling during transportation. It is important to note that such breakage will not affect the effectiveness of chlorine tablets

Main highlights

• •Single Chlorine Tablet Packaging and Long-Lasting Tabs: We oversee the entire manufacturing process of our proprietary formula, which is densely compressed into our 3-inch chlorine discs, ensuring a slower, more even dissolution rate.
• •Highest Effective Chlorine per Tablet (90%): Aqua Pura's chlorine tablets are safe for swimming and boast the highest-grade trichlor disinfectant with an effective chlorine content of 90%.
• •Stabilized Chlorine：Our pool chlorine tablets are formulated with stabilized chlorine to ensure protection against the sun's damaging UV rays
• •Defensive Power Against Algae and Bacteria：Eliminates all pool algae types and prevents bacterial growth effectively.
• •Versatile Pool Compatibility：Suited for all pool types, including vinyl-lined and saltwater systems.
• •Weekly Clarity Boost：A versatile shock treatment that resolves water problems, ensuring 90% clarity restoration within 24 hours.
• •IMPORTANT: Please be aware that certain tablets might arrive cracked or broken in their individually wrapped packaging due to handling by the carrier during transit. It's crucial to note that this breakage does not compromise the effectiveness of the chlorine tablets. We apologize for any inconvenience this may cause and sincerely appreciate your understanding.
• •Weight determines the quantity of chlorine tablets in our product: approximately 114 tablets for 50 lb, 57 tablets for 25 lb, 23 tablets for 10 lb, and 9 tablets for 4 lb. Please note these are approximate figures, and the exact quantity may vary. Specify your desired weight for the precise tablet count in your purchase. Feel to ask if you have more questions.

Main highlights

• •BENEFIT: Sanitizer, clarifier, and algaecide to protect your swimming pool and swimmers with one easy, convenient, and individually wrapped 3-inch tablet
• •CLEAR BLUE WATER: This advanced formula 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” Individually Wrapped Chlorine Tabs Advanced dissolve slowly and last up to one week
• •COMPATIBLE WITH ALL POOLS: This product is great for all pool types including vinyl-lined pools and saltwater systems; Use in floater, feeder, or skimmer basket
• •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

Main highlights

• •BENEFIT: Sanitizer, clarifier, and algaecide to protect your swimming pool and swimmers with one easy and convenient tab
• •CLEAR BLUE WATER: This advanced formula 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 product is great for all pool types including vinyl-lined pools and saltwater systems; Use in floater, feeder, or skimmer basket
• •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

Main highlights

• •Long-Lasting Chlorine Tabs: Pre-stabilized against UV rays to prevent chlorine burn-off for extended effectiveness.
• •Premium Ingredients: Made from 99% pure Trichloro-S-Triazinetrione with 90% available chlorine for superior sanitation.
• •Family-Safe Design: Each 50lb bucket features a childproof locking lid, and individually wrapped 3-inch tablets minimize odor, dust, and skin contact.
• •Easy Application: Simply place in a pool skimmer, floater, or feeder for hassle-free chlorine distribution.
• •Trusted Quality: With over 50 years of expertise, Doheny’s delivers premium-grade 3-inch chlorine tablets for crystal-clear pool water.

Main highlights