Is the In The Swim Pool Closing Kit worth it?
A top pick in Lawn & Garden on Amazon (#11 when we checked, Oct 23, 2026)

Worth it if you are closing a pool up to 15,000 gallons and want the main winterizing chemicals, shock-oxidizer, sorb, and floater together in one kit. The clear instructions and single package make seasonal prep easier to organize.
Good to know: If your pool is larger than 15,000 gallons, choose the next appropriate kit size rather than relying on this pack alone.
Pool winterizing chemicals that simplify the shed season
The pool is clear, the temperature is dropping, and the closing job has turned into a pile of bottles and one last calculation. In The Swim Pool Closing Kit brings the main pieces into one package for pools up to 15,000 gallons: Winterizer, Winter Stain-Away, chlorine-free shock-oxidizer, a Winter Sorb, and a winter pool floater.
That combination matters because each item has a separate job in the closing routine. The liquid products cover winter water care, the granular shock-oxidizer handles the chlorine-free shock step, and the floater adds a product designed for the off-season. The Winter Sorb is there for oils, with the maker stating that it absorbs 40 times its weight and helps prevent waterline scum.
The practical gain is less gathering before the cover goes on. You are not building the closing plan from separate products, sizes, and instructions. The listing also says the kit is designed to work without compromising other winterizing chemicals or pool surfaces. Customer feedback describes the instructions as clear and the contents as sufficient for a straightforward closing routine. The kit does not remove the need to prepare the pool correctly, but it gives you a coordinated starting point for the work.
You get five purpose-specific components in one 11.2-pound package, including chemicals and accessories used across the winterizing routine. That can replace the time spent assembling each item separately for a pool within the stated size range.
Great for
- Owners closing pools up to 15,000 gallons
- Seasonal pool owners who want one coordinated closing package
- Shoppers who prefer clear instructions and fewer separate purchases
- Anyone wanting a Winter Sorb included for oil control
Maybe not for you if
- Your pool is larger than 15,000 gallons and needs a larger kit
- You already have the listed winterizing chemicals and accessories
- You want to select every winter chemical separately
The In The Swim Pool Closing Kit is a sensible seasonal buy for owners closing pools up to 15,000 gallons who want the core winterizing products gathered in one package. It includes Winterizer, Winter Stain-Away, chlorine-free shock-oxidizer, an oil-absorbing Winter Sorb, and a floater, with clear instructions reported by buyers. Check your pool volume first, then follow the kit directions carefully. For the right pool size, it turns a scattered closing list into a more manageable off-season routine.
Amazon shoppers rate it 4.7 out of 5 across 9,704 ratings. That is their number, not ours.
Quick answers before you buy
What pool size is this kit for?
It is sized for pools up to 15,000 gallons. For an in-between size, the listing recommends choosing the next size up.
What is included?
The kit includes 1 quart of Winterizer, 1 quart of Winter Stain-Away, 2 pounds of chlorine-free shock-oxidizer, 1 Winter Sorb, and 1 winter pool floater.
Does it include chlorine?
No. The shock component is a chlorine-free pool shock-oxidizer. Follow the included directions for the complete closing process.
What does the Winter Sorb do?
It absorbs oils and is intended to help prevent waterline scum. The maker states that it absorbs 40 times its weight in oils.
Are instructions included?
Yes. Buyers specifically appreciate the clear instructions, which help organize the pool-closing steps.
The spec sheet, for those who want it
| Brand Name | In The Swim |
|---|---|
| Package Size Name | Deluxe |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Item Highlight | Winterizing Chemicals for Swimming Pools Chlorine-Free Shock-Oxidizer, Winterizer, Winter Algaecide, & Floater |
| Model Number | KWD150001AE |
| Manufacturer Part Number | KWD150001AE |
| Item Form | Granular, Liquid |
| Product Benefits | Maintains Clean Sanitized Water |
| Item Weight | 11.2 pounds |
| Brand | In The Swim |
| Item Weight | 11.2 pounds |
| Item Form | Granular, Liquid |
| Product Benefits | Maintains Clean Sanitized Water |
More top picks from Amazon, or every lawn & garden review.

