The latest PUR faucet mounted water filter that claimed "Easy One-Click Installation" sounds very attractive at the beginning or before you know anything about it...but actually it is a very crappy idea. As soon as your filter is soaked and heavy enough, that snap just can't hold the filter on your faucet any longer. Mine just did that in about two to three months...period! Even I tried very hard to put the filter back, it just can never attach to the faucet again. Crap! (So poor, I didn't even want to give it a star)