Doheny’s 3-Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools | 99% Pure Tri-Chlor 90% Available Chlorine | Long-Lasting, UV-Protected, Slow-Dissolving | Individually Wrapped 100lb Bucket
Doheny’s 3-Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools | 99% Pure Tri-Chlor 90% Available Chlorine | Long-Lasting, UV-Protected, Slow-Dissolving | Individually Wrapped 100lb Bucket
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Doheny’s 3-Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools | 99% Pure Tri-Chlor 90% Available Chlorine | Long-Lasting, UV-Protected, Slow-Dissolving | Individually Wrapped 100lb Bucket

5,299 ratings
Doheny’s 3-Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools | 99% Pure Tri-Chlor 90% Available Chlorine | Long-Lasting, UV-Protected, Slow-Dissolving | Individually Wrapped 100lb BucketDoheny s 3 Inch Stabilized Chlorine Tablets Pro Grade Pool Sanitizer Long Lasting Slow Dissolving 99 Pure Tri Chlor Individually Wrapped 100lbDoheny s 3 Inch Stabilized Chlorine Tablets Pro Grade Pool Sanitizer Long Lasting Slow Dissolving 99 Pure Tri Chlor Individually Wrapped 25lbDoheny s 3 Inch Stabilized Chlorine Tablets Swimming Pools Slow Dissolving Trichlor Pool Sanitizer UV Protected Individually Wrapped 8 lb BucketDoheny s 3 Inch Stabilized Chlorine Tablets Pro Grade Pool Sanitizer Long Lasting Slow Dissolving 99 Pure Tri Chlor Individually Wrapped 10lbDoheny s 3 Inch Stabilized Chlorine Tablets Pro Grade Pool Sanitizer Long Lasting Slow Dissolving 99 Pure Tri Chlor Individually Wrapped 50lb
Size100 lbs

Key item features

  • Pure Composition: These 3-inch stabilized chlorine tablets are formulated with 99% pure Trichloro-S-Triazinetrione, providing 90% available chlorine for effective swimming pool sanitation.
  • Extended Performance: Designed for long-lasting effectiveness, these slow-dissolving tablets are pre-stabilized against UV rays, preventing chlorine burn-off and ensuring consistent chlorination.
  • Secure Handling: Each 3-inch tablet is individually wrapped, which helps to minimize odor, dust, and direct skin contact during handling, while the bucket features a childproof locking lid.
  • Easy Application: Application is straightforward; simply place the tablets into a pool skimmer, floater, or feeder for hassle-free and continuous chlorine distribution throughout the pool.
  • Trusted Quality: Backed by over 50 years of expertise, these premium-grade chlorine tablets are engineered by Doheny’s to maintain crystal-clear and sanitized swimming pool water.
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Customer ratings & reviews

4.6 out of 5 stars
stars
5,299 ratings5,021 reviews
How item rating is calculated
  1. 5 stars82% (4,335)
  2. 4 stars9% (472)
  3. 3 stars4% (205)
  4. 2 stars2% (102)
  5. 1 star3% (185)

Reviews summary

Pros

  • : The tablet requires few steps for initial configuration and storage.
  • : Tablets deliver chlorine and keep the pool clear.
  • : The dimensions match pool chlorine dispenser requirements.
  • : The packaging keeps tablets separate and easy to handle.

Cons

  • : Some tablets arrive broken and show uneven release.
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Showing 1-3 of 5,021 reviews

Oct 8, 2026
Reviewer name: Inground Pool Owner
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

I have bought this product several times

I have had two shipments of this product in the past and found many broken tablets upon delivery. However, my first shipments and this last shipment was received with the tablets all intact, as far as I can see. This is a very good product for maintaining the chlorine levels in your pool.

Review from Doheny's
Helpful?26RJASY6V5M81118023337
Aug 10, 2026
Reviewer name: DaveP69
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Great Prices for Great Products!

I have purchased Doheny's Tri-Chlor tablets several times. I have a 25,000 gallon pool and it eats all chlorine tablets up in the summer time. Tri-Chlor is the best product I have found for pool maintenance, and Doheny's 50# bucket of 3" tablets is the most economical way to purchase them. The bucket comes in a manufacturer's labeled box and is usually delivered within days of the order, with free shipping. I have compared the pricing on many brands, sizes and distributors, but have found the Doheny's offerings to be the best. I will definitely buy from them again!

Review from Doheny's
Helpful?26RJASY6V5M81118023337
Sep 18, 2026
Reviewer name: JHH
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Great Delivery

This is the thrid or fourth time I have ordered this product. Look, chlorine tablets are about the same sold across all the major dealers. There is not a of difference between Doheny's and Leslies. The big difference?" Delivery to my front door within 36 hours. That is a service I appreciate - the fact that the last order was $20 cheaper than Leslies just made it sweeter.

Review from Doheny's
Helpful?26RJASY6V5M81118023337
Current price is $339.98
Price when purchased online
  • Free shipping
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4.5 stars out of 5, based on 1119 seller reviews(4.5)
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