HTH 42049 Pool Care 1" Chlorine Tabs, Swimming Pool Sanitizer with Added Clarifier - Eliminates Bacteria & Algae, Makes Water Clean & Crystal Clear, Sanitizes & Protects - Slow Dissolving, 1.5 lbs
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Availability:
In Stock.
Arrives
Sunday, Oct 5
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Size: 1.5 lb Bottle
Features
- BENEFIT: Protect your swimming pool and enjoy clean, clear water with these easy-to-use chlorine-based tabs; Kills algae and bacteria
- CLEAN, CLEAR WATER: HTH Chlorine Tabs keep water clear while protecting against bacteria, algae and other organisms
- SLOW DISSOLVING, LONG LASTING: Sun protected for longer chlorine life, HTH Chlorine Tabs dissolve slowly and last up to one week
- COMPATIBLE WITH ALL POOLS: This product is great for all pool types, including saltwater systems; Use 1" tabs for above ground pools, 3" tabs for inground pools; Use in floater, feeder, or skimmer basket
- YOURE ALL CLEAR WITH HTH: For best results, use HTH 6-Way Test Strips twice weekly to test and balance your swimming pool water and keep chlorine levels between 1 and 4 ppm
Description
The HTH Chlorine Tabs are perfect solution for keeping your swimming pool clear. The easy-to-use chlorine-based tabs protect against bacteria, algae, and other organisms, ensuring that your pool stays healthy for you and your family to enjoy. The slow-dissolving, long-lasting formula is sun-protected for longer chlorine life, dissolving slowly and lasting up to one week. Compatible with all pool types, including saltwater systems, use 1" tabs for above ground pools and 3" tabs for inground pools, and can be used in a floater, feeder, or skimmer basket. For best results, use HTH 6-Way Test Strips twice weekly to test and balance your swimming pool water and keep chlorine levels between 1 and 4 ppm. With HTH Chlorine Tabs, you're all clear for a summer full of fun and relaxation.
Brand: HTH
Item Weight: 1.5 Pounds
Item Form: Tablet
Product Benefits: Kills Algae and Bacteria
UPC:
Brand: HTH
Item Weight: 1.5 Pounds
Item Form: Tablet
Product Benefits: Kills Algae and Bacteria
UPC: 073187420497
Number of Items: 1
Unit Count: 24.0 Ounce
Product Dimensions: 3.13 x 3.13 x 9.5 inches
Item Weight: 1.5 pounds
Department: Unisex-Adult
Manufacturer: Innovative Water Care
Item model number: 42049
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Oct 5
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Top Amazon Reviews
HTH 42049 Swimming Pool Care 1" Chlorine Tabs have completely exceeded my expectations when it comes to maintaining my swimming pool water. These chlorine tabs are nothing short of remarkable, and I'm thrilled to share my positive experience. What sets these tabs apart is their slow-dissolving formula. Unlike cheaper brands I've tried in the past, these tabs dissolve gradually, providing a consistent and longer-lasting chlorinating effect. This slow-release feature not only ensures that my pool water stays sanitized for an extended period but also minimizes the frequency of application, making it incredibly convenient for pool maintenance. The effectiveness of these chlorine tabs is truly impressive. I've noticed a significant improvement in water clarity and overall pool hygiene since I started using the HTH 42049 tabs. They tackle algae and bacteria with efficiency, leaving my pool water crystal clear and inviting. The 1.5lb size is perfect for my needs, offering a sufficient quantity to last for an extended period. The packaging is sturdy and resealable, keeping the tabs fresh and ready for use. It's evident that HTH prioritizes quality in both their product and packaging. In comparison to cheaper alternatives, the HTH 42049 Swimming Pool Care 1" Chlorine Tabs have proven to be a wise investment. While they may cost a bit more upfront, the slow-dissolving feature and overall effectiveness make them a cost-effective choice in the long run. I appreciate the peace of mind that comes with knowing my pool is well-maintained with a reliable and high-quality product. If you're looking for chlorine tabs that dissolve slowly and work more effectively than cheaper brands, HTH 42049 is the way to go. I highly recommend these tabs to fellow pool owners who prioritize the health and clarity of their pool water. Five stars for a product that delivers on its promises!
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Reviewed in the United States on November 20, 2023 by jimmy white
Fluidmaster Flush n' Sparkle is a great product for keeping your toilet bowl sanitized -- it releases chlorine into the water with each flush, but without chlorinating the water in the tank which can cause degradation of seals and other parts. Unfortunately, Fluidmaster charges a hefty price for every single refill (needed about every 6 weeks in my experience). Instead, you can refill the Fluidmaster cylinder with 3 of these tablets at a fraction of their cost. You just have to pry the bottom cap off of the cylinder, which is admittedly difficult but worth the effort. I use a screwdriver tip to pry and push the cap off. I removed the foam rubber spacer that's in the Fluidmaster cylinder (not sure what its purpose is), and the cleaning system works just great.
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Reviewed in the United States on April 8, 2025 by Robin
Always great order all the time and item is perfect. I have never had any problems and works perfect. Very easy to open and container is very durable.
Reviewed in the United States on August 19, 2025 by Tasha Curtis
The size is just perfect for a home pool. Strength is just enough to keep the waters chlorine and PH levels in check. Just put it in the dispenser and go about your day.
Reviewed in the United States on July 28, 2025 by Charlotte Zerkle
works ok on my 80 inch pool but man 20 bucks for 1 jar should get 2 for 20
Reviewed in the United States on July 18, 2025 by nancy of Moline
I bought these HTH tablets to use as more affordable refills for the Fluidmaster Flush-n-Sparkle toilet cleaning system. If you are unfamiliar with this system, I would encourage you to investigate it or others like it. I can confirm that four of these 1" chlorine tablets fit perfectly inside the Flush-n-Sparkle cartridge (if you remove the black foam used as a spacer). I just tested my first refilled cartridge with these tablets in the toilet. I can report that the bowl water has more free chlorine than I was getting by refilling with broken fragments of a 3" Clorox toilet cleaning tablet. To refill the cartridge, all I do is cut a slit along the seams on opposite sides of the bottom of the Flush-n-Sparkle cartridge cylinder, pry off the end-cap, discard the black foam, and put four of these tablets inside the cartridge. Replace the end cap and the cartridge is ready to go back into the dispenser. All that is left to discover is how long these tablets last in this application. Very happy so far. Note: The 1.5 lb (0.7 kg) bottle that I received contained 44 tablets. Each tablet weighs just a little over 1/2 oz (0.56 oz) or 15.9 grams. So I expect to get at least 11 refills of the cartridges for this price. Much cheaper and maybe less plastic going to the landfill. ++++++++++ UPDATE: I've used these tabs for a week or so and can say they sure do put a lot more chlorine into the bowl than the refill cartridges from Fluidmaster, at least double. That means there is a noticeable bleach smell near the toilet, which may be a problem for some sensitive users. My wife has not complained yet so I am going to keep using them. Some folks may prefer the cleaner-smelling effect. The tabs are not dissolving too quickly either. Caution: I would be very concerned if we had pets drinking out of the toilets. Also I would not drop these tabs in the top tank without the cleaning system either, as I expect the high chlorine level would aggressively attack the rubber seals. ++++Update May 3, 2024++++ I originally bought a dozen or so Flush-n-Sparkle cartridges. I just refilled about 8 empty cartridges that we have accumulated over the past several months. Each empty cartridge holds 3 or 4 of these HTH 1" tablets. We have 3 toilets and 3 family members, and we are all at home most of the time. I try to check the toilets around the first of each month and replace any cartridges that are mostly empty. (I use a sharpie to write the replacement date on the top of the cartridge to track it. This date is easy to erase later with an alcohol pad. I would say that in our use case, these refilled cartridges are lasting 4 - 5 weeks in each toilet. If there are a few remaining pieces of undissolved tablet in a used cartridge, you can just insert 3 new tablets and crush down the shards. If completely empty, then 4 tablets will fit. I have 7 of the original 44 tablets left, so it is time to reorder more HTH tablets. This is a much more affordable solution for us.
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Reviewed in the United States on January 25, 2024 by KWC Indy
These 1-inch chlorine tablets are a great choice for small pools, spas, or floaters. Don’t let the size fool you—these tabs pack a punch. They dissolve slowly and evenly, keeping chlorine levels steady without the hassle of constantly checking and adjusting. Perfect for above-ground pools, kiddie pools, or hot tubs where 3” tablets would be overkill. They help keep water clear, fight algae, and kill bacteria just like the bigger tabs, but give you more control over dosing in smaller volumes of water. They come individually wrapped (depending on the brand), which makes storage easier and less messy. Just make sure to keep them in a sealed container, since they can crumble a bit if exposed to moisture.
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Reviewed in the United States on May 6, 2025 by Brice Craig Savacool