Search  for anything...

In The Swim Chlorine Shock Granules for Sanitizing Swimming Pools – 56% Available Chlorine – Dichlor – 40 Pound Bucket Multicolor

  • Based on 1,946 reviews
Condition: New
Checking for product changes
$271.99 Why this price?
Save $68.00 was $339.99

Buy Now, Pay Later


As low as $45.33 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

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.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 8 left in stock, order soon!
Fulfilled by Amazon

Arrives May 23 – May 28
Order within 18 hours and 10 minutes
Available payment plans shown during checkout

Size: 40 Pound


Features

  • In The Swim's granular chlorine is ideal for use in swimming pools, spas, fountains and water features
  • Powerful sanitizing powder that destroys bacteria, breaks down contaminants and kills algae
  • Calcium-Free formula keeps hard-water pools sparkling clean and crystal clear
  • Contains premium-quality 56% available stabilized chlorine
  • 99% Sodium Dichloro-S-Triazinetrione Dihydrate

Brand: In The Swim


Item Weight: 44 Pounds


Item Form: Granular


Product Benefits: Contaminants,Destroys Bacteria,Kills Algae


Product Dimensions: 16 x 13.9 x 13.2 inches


Item Weight: 44 pounds


Manufacturer: In The Swim


Item model number: C4045


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 23 – May 28

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
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Works great. Stronger than I thought.
Size: 5 Pound
I have an 18'x42" Coleman pool. I've been using this since I bought the pool. I supplement with 3" tablets in a floater. I was over chlorinating going by the instructions for "shocking." I've slowly dropped the amount using trial and error. Now I can keep the levels stable with 1-2 tablets in the floater and maybe 8oz or so of the granules as needed. Even through the crazy heat we've had in South Alabama this year. I think I can taper it off even more as the temperatures drop. Makes for keeping the pool crystal clear, super easy. ... show more
Reviewed in the United States on August 18, 2023 by WatchandjewelryLoft WatchandjewelryLoft

  • Misleading title
Size: 2 Pound
This product is not a bucket it is a container so don't expect a bucket of actual product it's misleading in the description but it is the product it's a chintzy little tube style container that is easily cracked
Reviewed in the United States on August 16, 2023 by Amanda Wise

  • Finally
Size: 40 Pound
I have finally found a chlorine that give me crystal clear water. Pool stays clear until next chlorination day, usually once week in summer.
Reviewed in the United States on August 25, 2023 by Debi O.

  • A little Expensive, but worth it
Size: 5 Pound
With chlorine prices going up, this product is great. I try not to buy mixed chlorine as it can negatively affect your pool. Just wish it was cheaper.
Reviewed in the United States on August 10, 2023 by Tim OD

  • Excellent Value
Size: 5 Pound
Works well pool clear and looks great
Reviewed in the United States on August 22, 2023 by Davidlillian

  • Perfect product and “perfect price”!!
Size: 40 Pound
Perfect product and “perfect price”!!
Reviewed in the United States on August 9, 2023 by Amazon Customer

  • Delivery date. Right on time
Size: 2 Pound
All was good
Reviewed in the United States on July 5, 2023 by Terry R Britz

  • Works great!
Size: 25 Pound
It took care of the algae
Reviewed in the United States on July 26, 2023 by C. Brown

Can't find a product?

Find it on Amazon first, then paste the link below.