Shopping Cart

Your cart is empty.

Your cart is empty.

Doheny’s 3-Inch Stabilized Chlorine Tablets | 99% Pure Tri-Chlor, 90% Available Chlorine | Long-Lasting, UV-Protected, Slow-Dissolving Pool Sanitizer | Individually Wrapped, Childproof 50lb Bucket

4.3 (8) Write Review
Free shipping on orders over $29.99

$194.99

$ 90 .99 $90.99

In Stock

1.Size:50 Lb.


About this item

  • Long-Lasting Chlorine Tabs: Pre-stabilized against UV rays to prevent chlorine burn-off for extended effectiveness.
  • Premium Ingredients: Made from 99% pure Trichloro-S-Triazinetrione with 90% available chlorine for superior sanitation.
  • Family-Safe Design: Each 50lb bucket features a childproof locking lid, and individually wrapped 3-inch tablets minimize odor, dust, and skin contact.
  • Easy Application: Simply place in a pool skimmer, floater, or feeder for hassle-free chlorine distribution.
  • Trusted Quality: With over 50 years of expertise, Doheny’s delivers premium-grade 3-inch chlorine tablets for crystal-clear pool water.



4.6 out of 5 stars Best Sellers Rank
  • #1,319 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
  • #31 in Swimming Pool Chlorine
 Is Discontinued By Manufacturer No

Product Description

Doheny's Chlorine Tablets

3in chlorine tabs

Fast Acting & Slow Dissolving

Doheny's 8 oz tablets are highly compressed to reduce the dissolve rate and prolong shelf life without containing filler or binders like other tablets.

Chlorine Ingredients

Strong 99% Active Ingredient

Chlorine Tablets consist of 99% pure Trichloro-S-Trianzinetrione and 1% other ingredients meaning Doheny's tablets have 90% available chlorine for maximum effectiveness.

Doheny's Chlorinators

Simple To Use

No measuring, guesswork, or mess! Simply add the tablets to your floating chlorinator or automatic feeder and ENJOY YOUR POOL!

Doheny's 3in Chlorine Tabs

Individually Wrapped

Each of of the chlorine tablets are individually wrapped for odor reduction and ease of handling.

Child-Resistant Packaging

Child-Resistant Packaging

These convenient tablets come in a container with a child-proof locking lid for safety.

UV Resistant

UV Resistant & Stabilized

Chlorine tablets are stabilized against the sun's UV rays to prevent chlorine burn-off.

Customer Reviews
4.6 out of 5 stars 4,832
4.6 out of 5 stars 106
4.7 out of 5 stars 2,148
4.5 out of 5 stars 127
4.6 out of 5 stars 446
4.7 out of 5 stars 74
Purpose Kills off germs and breaks down dirt and other debris in your pool Kills off germs and breaks down dirt and other debris in your pool Destroys harmful bacteria, chloramines, algae, and other contaminants Destroys harmful bacteria, chloramines, algae, and other contaminants Burns off spent chlorine cells so newer, active chlorine can work more efficiently Protects Chlorine from the sun's UV Rays
Usage Daily Daily Weekly Weekly Weekly Add when cyanuric acid falls below desired levels
Application Floating dispenser or automatic chlorinator Pre-dissolve then add to pool water Pre-dissolve then add to pool water Pre-dissolve then add to pool water Pre-dissolve then add to pool water Pour directly into water
Dosage 1-2 tablets per 10,000 gallons 2-3 oz per 10,000 gallons to maintain 1-3 ppm 1 lb per 10,000 gallons 1 lb per 10,000 gallons 1 lb per 10,000 gallons 1lb per 5,000 gallons provides 25 ppm
Active Ingredient 99% Tri-Chlor 99% Sodium Dichloro-S-Triazinetrione 68% Calcium Hypochlorite 99% Sodium Dichloro-S-Triazinetrione 42% Potassium Monopersulfate 100% Cyanuric Acid

Way
Reviewed in the United States on March 4, 2025
Not much tablet breakage seems to dissolve at a normal rate. And the chlorine seems to work well
vicente A
Reviewed in the United States on March 12, 2025
Arrived earlier than stated. I’m familiar with the product and I am happy with it.
melanie Paulman
Reviewed in the United States on March 12, 2025
Good chlorine
AFASOXFAN
Reviewed in the United States on February 27, 2025
Look, own a pool you need chlorine. These 3 inch tabs are some of the best. I found them at a good price, which is nearly impossible these days. Manufacturers continue to use a fire at a chlorine plant 4 years ago to increase profit by raising prices.Search and search. Sometimes you can find a deal and beat them at their game.
Karen Sue Teeters
Reviewed in the United States on February 12, 2025
great product
Kevin Maki
Reviewed in the United States on September 7, 2024
Have used this product for a couple years now for our pool. Tabs are individually wrapped and have very few broken ones when I open a new package. Keeps the pool chlorine levels up and they last almost a week in the floater. Very happy with the product. To me, they offer the best quality for the best price.
Sean Bearly
Reviewed in the United States on September 27, 2024
I estimate there are about 90 tablets of chlorine in the bucket. They are all individually wrapped. As you get 3/4 of the way down there are more and more broken tablets. Some just split in half and still wrapped, about 15 percent of them totally fallen apart, with powder and small pieces out of the wrapping. But I don't know how that can be prevented other than to manually set them into the bucket in carefully stacked rows that support each other. That would be time consuming. Other than that they do the job.
truth57
Reviewed in the United States on October 7, 2024
Finally I found long-lasting, and potent little chlorine pucks! The Clorox and HTH brands are horrid. Have fillers. And each of their puny pucks last less than 48 hrs. These are a huge improvement. No fillers and each one lasts 3-4 days. Making them much more effective and economical. Never going back.