HTH 42049, Pool Care 1" Chlorine Tabs, 1.5 lbs

These chlorine tablets work exceptionally well and keep my pool crystal clear. They dissolve at a steady rate, making it easy to maintain the proper chlorine levels without constant adjustments. The water stays clean, fresh, and free of algae, even during hot weather and frequent use. The tablets are individually well-made, easy to handle, and provide excellent value for the price. Since I started using them, pool maintenance has become much simpler. I highly recommend these chlorine tablets to anyone looking for an effective and reliable way to keep their pool clean and sparkling.

Perfect for smaller above ground pools. I add to my floater and it keeps my pool perfectly chlorinated.

Perfect size for small pool. Easy to use. Clears pool water

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. ****Update: 01/2026***** I also bought the 5 lb. jug and those tablets were just a tiny bit thicker. This caused a refill reduction from four tablets to three, because four tablets from the 5 lb. container did not fit in the cartridge. Not a big deal, but now I get about a 3 weeks between refills instead of 4 weeks. I change all three of my tanks at the same time, so sometimes not all of the tablets have completely dissolved: there is a remainder. So I use those undissolved pieces next time when I refill cartridges with the three tablets.

These 1" chlorine tablets have worked really well for keeping our pool clean and clear. They dissolve at a steady rate and help maintain the chlorine level without needing constant attention. Since switching to these, the water has stayed much clearer with less algae buildup. They're the perfect size for smaller pools, floaters, or skimmer baskets, and having them on hand makes routine pool maintenance much easier. As with any chlorine product, it's important to test your water regularly, but these tablets have been a reliable part of our pool care routine. Great quality and easy to use!

These small tablets are great for a smaller pool. We have a 12x12 and we put about 4-5 of these tablets in our chlorine float and it lasts about a week or so!

I bought these 1-inch HTH chlorine tablets for my pool, and they have worked very well. They are easy to use, dissolve evenly, and help keep the water clean, clear, and algae-free. I like that they also contain a clarifier, which makes maintenance much easier. Since I started using them, the water has stayed crystal clear for longer, and I haven't had any issues with bad odors or cloudy water. The packaging is convenient, and the product offers great quality for the price. I would definitely buy them again and recommend them to anyone looking for an effective solution for pool care.

Use other products that did not work well. Small abovegound pool with filter system. This product keeps the water crystal clear in 100f texas temps. Very well satisfied, as this is out second bottle. Try it ! It is a very good pool product !

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Works weell

Good product