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In The Swim

In The Swim Pool Closing Kit - Winterizing Chemicals for Above Ground and In-Ground Pools - Up to 35,000 Gallons

  • Based on 17,488 reviews
Condition: New
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$79.98 Why this price?

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This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: In Stock.
Fulfilled by In The Swim Pool Supplies
Arrives Sunday, May 31
Order within 10 hours and 57 minutes
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Style: Kit Only


Size: Super


Features

  • Convenient: In The Swim's Pool Winterizing and Closing Chemical Kit streamlines pool closing with all necessary chemicals included, saving time and chemical usage.
  • Safe and Reliable Protection: Our winter chemical kits provide reliable protection without the risk of compromising other pool winterizing chemicals or causing damage to pool surfaces.
  • Effective Oil Absorption: In The Swim's Winter Sorb absorbs 40 times its weight in oils, preventing waterline scum. Kits include 1 white or 2 blue sorbs.
  • Comprehensive Kit Components: Kit includes 1 Qt. Winterizer, 1 Qt. Winter Stain-Away, 3 Lb. Chlorine Free Pool Shock-Oxidizer, 1 Winter Sorb, and 1 Winter Pool Floater.

Brand: In The Swim


Item Weight: 14.1 Pounds


Item Form: Liquid


Product Benefits: Maintains Clean Sanitized Water


UPC:


Brand: In The Swim


Item Weight: 14.1 Pounds


Item Form: Liquid


Product Benefits: Maintains Clean Sanitized Water


UPC: 819163021339


Unit Count: 1 Count


Product Dimensions: 13.6 x 8.8 x 8.7 inches


Item Weight: 14.1 pounds


Manufacturer: In The Swim Discount Pool Supplies


Item model number: KWS350001AE


Is Discontinued By Manufacturer: No


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, May 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

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.

Similar Products

Top Amazon Reviews

    • Great value
Style: Kit Only Size: Super
It is easy to use and seems to help, but I certainly don't open to a crystal clear pool. However, it does seem to help, is easy to use, and a great price.
Reviewed in the United States on October 27, 2025 by Amazon Customer
    • An excellent product, and excellent Price
Style: Kit Only Size: Super
An excellent product, and excellent Price
Reviewed in the United States on March 2, 2026 by Gerald D. Schrag
    • Easy to use with good results!
Style: Kit Only Size: Super
Great product! Easy to follow instructions. I have used this closing kit several times and my water is crystal clear when I open my pool in the spring.
Reviewed in the United States on September 20, 2025 by Laura
    • Good pool closing kit.
Style: Kit Only Size: Super
Good closing kit, has always worked well for us.
Reviewed in the United States on October 9, 2025 by Philly_Joe
    • Make life easy
Style: Kit Only Size: Super
Easy to follow. This was my second year using the kit. I came back because how easy it was and how nice my pool was when I opened it after the first winter. And the price is great. Yes you could but it all separately but now I don’t have to worry if I got everything and much cheaper than the store down the street. ... show more
Reviewed in the United States on October 16, 2025 by W. Hughes
    • Closing my pool for the winter in the Northeast using In The Swim pool closing kit.
Style: Kit Only Size: Super
Great pool closing kit at a very affordable year end price. Has everything required to ensure your pool is clear and not green when you open it up. I have been using this kit for many years and it never let me down.
Reviewed in the United States on December 9, 2025 by GypsyBP
    • Works great, saves time opening in the spring
Style: Kit Only Size: Super
Used this last fall when closing the pool. Opened the pool in May and it was pretty clear with no green water. Had some clouds but once we vacuumed it our, it was ready to go! Saved a lot of time vs not using it the year before.
Reviewed in the United States on October 8, 2025 by Mike M
    • Best pool closing kit
Style: Kit Only Size: Super
This kit makes it easy to close up the pool for the season. It keeps the water clear and algae free that will require less chemical when opening in the spring. Very clear step by step guide.
Reviewed in the United States on September 28, 2025 by Tina Marie

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