Product review (1 stars): Easily broken
I am not sure if it was something I was doing, but I bought two of these (one to install and one for backup) and while trying to put the first one in place, it broke (small thin plastic attachment onto my copper cable wasn't working).  I was really glad I bought two - then the second one broke too!!!

I decided to drink my water as it comes out of the ground - forget the filter- these aren't worth it.  (HOWEVER, they did refund me the entire price - so this seller is reputable!!)  Thanks for that guys!