fluidmaster.com

This item helps tremendously.

Order and delivery was good. Product did not work on my toilet. Gerber.

Easy installation on standard flus mechanisms. More difficult on Kohler canister flusters.

I paid for shipping and it took two weeks to arrive, wont order from site again

I like the Flush and Sparkle system because it keeps the toilet tank seals from being in constant contact with chlorine which can shorten the life of the seals. I would much prefer that the refill cartridges be Reuseable, by allowing them to come apart and be refilled with the chlorine "tablets" instead of having to throw out the whole cartridge once the tablet has disolved. That seems like a much more economical and ecological solution.