Clorox Spa 20001CSP Brominating Tablets, 1.5-Pound

Used in our hot tub and worked as expected.

I use these in my Kaboom toilet tank cleaner. They fit fine and last a long time. Far, far cheaper than buying the pills from Kaboom.

I use this exclusively in the toilet with Kaboom Toilet Clean System; it works great and fits perfectly, like the one that was with kaboom itself.

Useful for pool

I use these in my kaboom continuously clean toilet cleaning system instead of buying their refills. This lasts me a long time and I rarely clean inside my toilets. I know how gross that sounds, but it's true and my toilets look new. Between these tablets and the way my Cadet 3 toilet swishes the water around the bowl, there is really no need to do anything other than flushing. I don't get mineral lines because I have a water softener, but these tablets for me kill and prevent bacteria in the bowl with every flush. These do not have an overwhelming odor to them (like chlorine tablets) and after a few hours, you can't smell them at all. 2 Tablets last about 2-3 months in each of my bathrooms and the price is awesome here on Amazon, $15ish. For those of you who are using this in the toilet tank.... my tubing that Kaboom came with, eventually swelled and turned white. I have searched for a few years for just a replacement tube in the local stores, but they are not sold. They tell you to buy a whole new fill tube kit...NO, I will not do that for 6" of tubing. I accidentally found, here on Amazon, silicone tubing and 10Ft of it if you should need to replace the tubing. It is item # B08H597B7T you can copy and paste into the search bar. You may be able to find another silicone tubing locally that works, or even here on Amazon. The measurements are: 0.12'' (3MM) ID, 0.27'' (7MM) OD. Being I had 10 feet of it, I replaced all tubing in all toilets now and still have some left over. It works EXCELLENT in the toilet tanks and the bromine has not distorted the silicone tubing at all. The silicone has some stretch to it so it will fit onto the fill valve and also the Kaboom cartridge and be snug without leaking at all.