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In The Swim Opening Kit and Chlorine Bundle - Pre-Measured Opening Kit for Easy Use - 10 Pound Bucket of 3-Inch Stabilized Chlorine Tablets - Inground and Above Ground Pools Up to 7,500 Gallons

  • Based on 15,776 reviews
Condition: New
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$74.98 Why this price?
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Availability: In Stock.
Fulfilled by In The Swim Pool Supplies

Arrives Saturday, Jun 6
Order within 8 hours and 44 minutes
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Style: Kit + Chlorine


Size: Basic - 7.5k gallon


Features

  • Stress-Free Pool Opening: Pre-measured kit removes guesswork and saves time, making it easy to kick off the pool season.
  • Bundle includes 10 pound bucket of 3 inch stabilized chlorine tablets and 7,500 gallon start up kit
  • Powerful Chlorination: Includes 3-inch tabs with 99% Trichloro-S-Triazinetrione and 90% stabilized chlorine for long-lasting, UV-protected sanitation.
  • Startup Clarity & Algae Control: Algaecide works with shock to combat algae growth, while Clarifier and Sun Sorb boost water clarity by removing oils, grime, and scum for a cleaner, well-filtered pool.
  • NOTE: This bundle will likely ship in multiple packages, which may come from different locations and arrive on separate days. Please allow an extra day or two for all items to be delivered.

Brand: In The Swim


Item Weight: 2 Pounds


Item Form: Granular, Liquid, Tablet


Product Benefits: Kills Bacteria, Maintains Clean Sanitized Water


Number of Packs: 1


Brand Name: In The Swim


Number of Items: 7


Unit Count: 10.0 Count


Manufacturer: ALL CHEM INDUSTRIES


Item Form: Granular, Liquid, Tablet


Product Benefits: Kills Bacteria, Maintains Clean Sanitized Water


Item Weight: 2 Pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Jun 6

This item is non-returnable:

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

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • great starter package
Style: Kit + Chlorine Size: Basic - 7.5k gallon
This was a great starter kit. We got our first pool and I was so lost on where to even start. It was a great package to get me started. There are a few things that I am not sure if I will end up needing them but I am glad I got it to get me started.
Reviewed in the United States on September 13, 2025 by Jessie

  • Pool chemicals
Style: Kit + Chlorine Size: Basic - 7.5k gallon
Easy directions for 20’ above ground pool
Reviewed in the United States on May 23, 2026 by B

  • Works as it should
Style: Kit + Chlorine Size: Basic - 7.5k gallon
Works as it should
Reviewed in the United States on May 23, 2026 by Amanda

  • Great purchase
Style: Kit + Chlorine Size: Basic - 7.5k gallon
Included everything I needed.
Reviewed in the United States on May 17, 2026 by K. Pryor

  • quality
Style: Kit + Chlorine Size: Basic - 7.5k gallon
This product brand is one of the best. I get the best results from these than I do any product I buy in the store
Reviewed in the United States on April 22, 2025 by David Corrao

  • Working as it’s supposed to
Style: Kit + Chlorine Size: Basic - 7.5k gallon
This was shipped quickly and arrived in two separate boxes and two different days. I bought this for my 700-gallon little pool. The chlorine tablets are 3 inches so I will probably use one every other week or I will break them up and use 1 a 1-inch amount once..
Reviewed in the United States on June 2, 2025 by Angela M

  • DO NOT BUY
Style: Kit + Chlorine Size: Basic - 7.5k gallon
These did absolutely nothing to clean my pool. It cleaned the surface of water. But everything else was exactly the same as it was before I put these in. The algae was totally up and down the pool walls. The instructors don’t specify the gallon ratio. DOES NOT WORK, my wife says the smell lingered the back yard. ... show more
Reviewed in the United States on May 20, 2026 by Tyler beam

  • Perfect for your needs
Style: Kit + Chlorine Size: Basic - 7.5k gallon
Got my pool opened perfectly
Reviewed in the United States on June 30, 2025 by Bush

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