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In The Swim

In The Swim 3 Inch Stabilized Swimming Pool Chlorine Tablets - 5 Pounds

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Availability: In Stock.
Fulfilled by In The Swim Pool Supplies
Arrives Tuesday, Oct 27
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Size: 5 Pound


Style: Chlorine Only


Features

  • Cleaner, Safer Water: Our chlorine tablets remove bacteria, algae, and other organic contaminants to ensure your above ground or inground swimming pool stays clean and clear throughout the entire season
  • Powerful Sanitization: 99% Trichloro-S-Triazinetrione with 90% stabilized chlorine. Tablets do not expire and are non-perishable, but best used within 2 years of manufacture.
  • Long-Lasting Protection: Slow-dissolving to ensure consistent chlorination. Perfect for use in floaters or automatic feeders
  • UV Protected: Sun-stabilized to resist depletion from harmful UV rays
  • Usage: Ideal size for floaters or automatic feeders

Description

3 Inch Chlorine Tablets Cal-Hypo Pool Shock Alkalinity Increaser pH Increaser pH Reducer Get your pool swim-ready with the In The Swim Opening Kit—a powerful bundle of essentials designed to kick off your season or keep your water balanced all summer long. Cal-Hypo perfect for deep-cleaning pools, spas, and hot tubs. Maintain a pristine pool with Super Algaecide—keeping your water safe to swim in right away and gentle on your eyes and nose. Alkalinity Increaser features a granular formula that raises alkalinity, stabilizes pH, and ensures clear, safe water for pools, spas, and hot tubs.

Brand: In The Swim


Item Weight: 5 pounds


Item Form: Tablet


Product Benefits: Kills Bacteria, Maintains Clean Sanitized Water


UPC:


Brand Name: In The Swim


UPC: 803354120710


Package Size Name: 5 Pound


Unit Count: 80 Ounce


Item Highlight: Individually Wrapped, Slow Dissolving, 90% Available Chlorine, Tri-Chlor for Sanitizing Above Ground Swimming Pools


Manufacturer: LPM Manufacturing


Model Number: LPM 12071


Manufacturer Part Number: LPM 12071


Item Form: Tablet


Product Benefits: Kills Bacteria, Maintains Clean Sanitized Water


Item Weight: 5 pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 27

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Great product, great price
Size: 50 Pound Style: Chlorine Only
I've used this product for two swim seasons, and haven't had an issue. Priced below the ask by big box and pool supply stores. When you have a prime account, its delivered for free. Shop from your family room instead of fighting store crowds. Tablets fit well in chlorine floating pods or automatic chlorinators. ... show more
Reviewed in the United States on October 4, 2026 by Greg D.
    • Great price and quick delivery
Size: 50 Pound Style: Chlorine Only
Pretty good stuff. Great price at just over $3 per lb. Fast delivery works well.
Reviewed in the United States on October 6, 2026 by MatthewTroy
    • Great for Larger Pools that take a lot of Tablets
Size: 50 Pound Style: Chlorine Only
We love the Value of the larger bucket, the Tablets seem to last as long as the ones from the POOL SUPPLY CHAIN. The Tablets fit in out 10 tablet Auto Chlorinator, so they are true to size and effectively keep our pool water Chlorinated. They door have a scent to them as all tablets due.
Reviewed in the United States on September 24, 2026 by Bobby Mills
    • Great Value, but BioGuard Works Better
Size: 50 Pound Style: Chlorine Only
You definitely get a lot for the money with this 50-pound bucket. The tablets work pretty well for regular pool maintenance, dissolve slowly, and being individually wrapped makes them easier to handle and store. In my experience, BioGuard tablets give me better and more consistent results, but they also cost quite a bit more. If you want the absolute best performance, I would go with BioGuard. If you care more about getting a large supply at a much lower price, these are a solid value. It’s more quantity over premium quality, but they still get the job done. ... show more
Reviewed in the United States on July 31, 2026 by Rprada
    • GREAT PRICE FOR THE QUANTITY YOU RECEIVE!!
Size: 10 Pound Style: Chlorine Only
These chlorine tablets have been great. I have bought these multiple times on here. The quantity that you receive, and the individual wrapped tablets are great for the price. I had shopped around locally, and you will pay more for this quantity and brand. They keep the water very clear, and sanitized with the proper regular maintenance, of course. They work well with any above ground pool and are a great fit for any pool. I will continue to purchase these as long as they have them on here. ... show more
Reviewed in the United States on July 18, 2026 by Toni Hitchcock
    • so happy!!
Size: 50 Pound Style: Chlorine Only
This review is a joy to write. We needed chlorine tablets for our pool. All the tablets in the area were for 35 pounds and priced between $159 to $164 depending on the retailer. I looked into Amazon the tablets were priced= 50 pounds for $159 and it was delivered to my door. The price with excellent and I didn't have to spend any gas going to purchase it. Needless to say, the 35 pounds would have been difficult to carry and this purchase was delivered directly to my door. ... show more
Reviewed in the United States on September 9, 2026 by loretta beitia
    • Working great for our pool
Size: 10 Pound Style: Chlorine Only
⭐️⭐️⭐️⭐️⭐️ Works great for keeping our pool clean These 3-inch chlorine tablets have been working really well for our pool. They dissolve slowly and make regular pool maintenance much easier since I don’t have to add chlorine every day. I also like that they are individually wrapped, which makes them convenient to handle and store. The tablets have helped keep the water clear and properly chlorinated. So far, I’m very happy with the results and would definitely purchase them again. ... show more
Reviewed in the United States on September 10, 2026 by Emelyn R Paniagua Sánchez
    • They’re dependable, cost-effective, and make pool upkeep a breeze. Highly recommended!
Size: 25 Pound Style: Chlorine Only
I've been using In The Swim's 3 Inch Stabilized Chlorine Tablets for many seasons now, and they’ve quickly become a staple in my pool maintenance routine. These tablets are effective, easy to use, and provide consistent sanitation without the hassle of daily monitoring. Pros: Long-Lasting Formula: Each tablet dissolves slowly and steadily, which keeps the chlorine levels in my pool stable for days. I only need to check and refill the floater or chlorinator once or twice a week. Stabilized for UV Protection: Because they’re stabilized, they hold up well under the sun without burning off too quickly, which saves me both time and money on frequent dosing. Clean and Convenient Packaging: The tablets come individually wrapped and in a sturdy bucket that’s easy to seal and store. Reliable Sanitization: I’ve had zero issues with algae or cloudy water since switching to these tablets. They really keep the water crystal clear and safe. Cons: Strong Odor: As expected with chlorine, the smell is strong when opening the bucket—so make sure you’re in a well-ventilated area. Not Ideal for Smaller Pools: These 3-inch tablets may be too much for very small pools or spas unless you break them up, which can be messy. Final Verdict: If you own a medium to large-size pool and want an efficient, low-maintenance chlorine solution, In The Swim's 3-inch tablets are a fantastic choice. They’re dependable, cost-effective, and make pool upkeep a breeze. Highly recommended! ... show more
Reviewed in the United States on May 5, 2025 by Michael F

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