Hasn't been in tank long enough to evaluate effectiveness. Product received in timely manner and directions were easy to follow.

Product works well and keeps toilet clean. It lasts a long time and does not need a lot of maintenance.

They seem to keep the bowl cleaner in between actual cleanings. I also like that they do not color the water or have a strong smell.

It does not take long for a ring to start to develop without using these. Keeps the hard water stains at bay and keeps the bowl fresh.

Love this product, only wish they carried it in store again! However, even though I purchased this on line it arrived very quickly!

Great Purchase. My husband loves these. He searched high and low locally and could not find them anywhere. Thank You Sam’s Club online!

These are the only tablets that we have found that really work. I just wish they were not so expensive.

These clorox tablets keep the bathroom smelling fresh and keep the bowl clean longer. It also make regular cleaning quicker and easier.

Great job at keeping the toilet bowl clean. It is worth getting used to the smell to take advantage of a clean toilet bowl for one month.

My toilet has never been so clean!!! We have a well and Clorox tablets are the only ones that work in our toilets. I highly recommend them!