Title: Poor quality, flawed design
Review: We've had 4 of these things and all have failed in about a year and a half.The water quality is good I suppose though I guess it would take a lab analysis to be sure.The connection where it mounts to the faucet is weak and it dribbles even when installed with plumber's teflon tape.The device is slippery and in order to get a grip on it to unscrew the cartridge housing, I have to use a rubber glove.I guess it's better than bottled water but it's a pretty shoddy piece of crap.I recommend they charge twice as much, make it out of metal rather than cheap imitation metallic plastic, and put a knurled surface on the housing so it's more human friendly.
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