I've been using Clorox Bleach tablets in my toilet tank for over 30 years and love this product. I clean my toilet at least once a week and these tablets prevent black mildew stains from accumulating just under the rim of the toilet bowl where the water rushes down to flush. It's an area that my toilet brush can't reach. I only have to drop one of these tablets into the toilet tank every 1 to 2 months. I highly recommend it!

These work great. Where I live we have really bad water and so if we don't use this product I grow mold in my toilets. Nothing worse than looking down into the toilet as you're getting ready to sit down on it and realizing there's mold growing inside the toilet under the water. These tablets help stop that. In fact that's how I know when I need to add a new one is that the mold starts growing in my toilet again. I highly recommend these. At first it it smells a little like chlorine but then I no longer notice the smell.

Recently bought a new white commode and right away noticed that the hard water and rust stains in bowl after flushing. Didn't want to use abrasive brushes and some other chemical compound to clean those stains after each flush so I bought the Clorox tablets and they work!

I love these things; they keep the toilet looking better between cleans. However, if you purchase them anywhere else, you are paying WAY too much for them. I have price compared, and while it seems really expensive, you are better off getting these here in the long run.

This toilet bowel cleaner keeps the hard water in my area from making a line around the bowl. It took me a little while to get used to the Clorox smell when I first put them in my tank, but the smell is something that I think you would get used to. They keep my toilets looking pristine!

These toilet bowl tabs are great (if you don't mind using bleach... I know some people are weird about that). They seriously last 4-6 weeks in the tank and keep the bowl sparkling clean. You still have to clean the bowl occasionally but they keep hard water from staining your bowl and there is no nasty build up under the rim! Sam's Club is one of the only places I can find these tablets and I HOPE they keep them in stock because they are totally awesome! Even turned my daughter on to them because she asked how I keep my toilets from staining... these bleach tabs are the answer!!!

I have used this for years. Each tab lasts for about 1 month. 6 tabs were shipped to me in a yellow envelope instead of a box and most are shattered and the product will probably not last as long. I will not purchase from this supplier again but will continue using the product.

where we live, if water sits too long in the toilet bowl, a pink line forms in the bowl. it’s frustrating that we have to clean the toilets every couple of days. we’ve had these for about 3 weeks now and have yet to notice even an ounce of pink lining

I love these discs, keep my bathrooms smelling fresh. I haven't experienced the issue where it corroded my inner plumbing workings, but will cross that bridge when I get to it. I like how it eliminates the ring in the basin and emits a fresh chlorine scent well after many flushes.

This product keeps the toilet clean. It doesn’t accumulate residues. Every summer works wonders since eliminates odors. Since it doesn’t let bacteria grow specially during a warm or hot weather the odors is not present. I have noticed the difference with it and without it and I soon soon as I put the the Clorox tablet in the bowl it starts working within few minutes.