Product review (1 stars): Don't Be Fooled!
These do not work as advertised and turned out to be a waste of money.

We have installed two of these that are supposed to last 6 months.  The first one failed at 1 month, and the second lasted a month and a week. After about a month they started to make noise when we ran the water.  We should have returned them after the first one, but thought it was probably just a one-time problem, so we installed the second.  After a month or so, it also started making noise and the water flow slowed to a trickle.  These are not acceptable and should not be sold by AMAZON.

I would like a refund and have one completely unused.