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In The Swim

In The Swim 3 Inch Stabilized Chlorine Tablets - 50 Pounds

  • Based on 24,021 reviews
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Availability: In Stock.
Fulfilled by In The Swim Pool Supplies
Arrives Saturday, Sep 5
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Size: 50 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: 50 pounds


Item Form: Tablet


Product Benefits: Kills Bacteria, Maintains Clean Sanitized Water


UPC:


Brand Name: In The Swim


UPC: 656165284689


Package Size Name: Bucket 50 lb


Number of Items: 1


Unit Count: 800 Ounce


Manufacturer: In The Swim


Model Number: C3050


Manufacturer Part Number: C3050


Item Form: Tablet


Product Benefits: Kills Bacteria, Maintains Clean Sanitized Water


Item Weight: 50 pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Sep 5

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 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
    • Good product for chlorine/salt pools
Size: 10 Pound Style: Chlorine Only
Great product individually packaged and does the job one tablet per week and my pool is sparkling clean. A little expensive but I guess worth it
Reviewed in the United States on July 17, 2026 by Vincent Barone
    • Works. Cheaper
Size: 25 Pound Style: Chlorine Only
Works great. Best price
Reviewed in the United States on August 24, 2026 by Janice Storey
    • 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
    • Works as it should
Size: 25 Pound Style: Chlorine Only
Great price
Reviewed in the United States on August 17, 2026 by Psycle LLC
    • Only 6 broken
Size: 50 Pound Style: Chlorine Only
Good price and arrived with only 6 broken shipping from California to Arizona. . I removed and placed all the tablets inside another plastic bag to help preserve them. The individually wrapped bags are not 100% sealed and I can smell chlorine in the shed if I don’t keep them double wrapped. Anything steel will rust incredibly fast if I smell the chlorine in there. ... show more
Reviewed in the United States on August 1, 2026 by Amazon Customer
    • The best for a couple reasons!
Size: 50 Pound Style: Chlorine Only
I like these stabilized tablets as compared with others. They seem to last longer. Not only that but they come out of the plastic packaging so much easier with a quick tug of the bag. No more pain in the butt cutting with a scissors! Anyway, same price as the others and it’s a simpler chore to fill up the chlorinator…plus, it probably saves one refill a summer at least, because they last longer. Win win! 😁 ... show more
Reviewed in the United States on June 19, 2026 by Paul R. F
    • Low Maintenance
Size: 10 Pound Style: Chlorine Only
I run a 20,000-gallon pool, and these have made maintenance about as low-effort as it gets. Two tablets in the floater covers me for the week — I’m checking chlorine once or twice instead of chasing it every other day. They come individually wrapped, so the bucket doesn’t fuse into one solid block halfway through the season, and the tabs hold together instead of crumbling when you handle them. The slow-dissolve is the real selling point. On a pool this size, an inconsistent tab means you’re either burning through chlorine by Thursday or overshooting on Monday. These break down at a steady, predictable rate, so free chlorine sits in range instead of spiking and bottoming out. Through a stretch of hard sun and heavy swim days, levels held where I wanted them without me adding anything mid-week. The built-in stabilizer is doing its job — UV isn’t eating my chlorine by mid-afternoon. ... show more
Reviewed in the United States on August 13, 2026 by Haley Rkn

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