fluidmaster.com

Very good

The chlorine-based product works very well. The others not so much so.

Works perfectly as advertised

My order was delivered missing several items. Fluidmaster corrected the problem and shipped the missing items quickly. Fluidmaster products are well designed, and have an excellent reputation among plumbers and contractors.

When it works it’s great, but sometimes it will not record for hours at a time leaving large gaps.