HTH42049 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

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!

Works great in my portable hot tub. Love the price and how fast the shipping was!

These chlorine tabs dissolve slowly and do a fantastic job keeping my pool water crystal clear. They fit perfectly in my floater and don’t crumble like others I’ve used. Excellent product!

Works great in my small pond

works ok on my 80 inch pool but man 20 bucks for 1 jar should get 2 for 20

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.

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.

“Absolutely love these chlorine tablets! They keep my pool water sparkling clean and crystal clear. So easy to use, and the difference is amazing! I’ll definitely keep buying them — highly recommend!”