Product review (1 stars): WFC1801 replacement for UKF8001.
Attention: Jennifer Stone, Customer Service, Waterfall Filter Company
We ordered two of the WFC1801 water filters and when I installed the first one it made a loud rattle and eventually the water flow slowed to a trickle.  I installed the old filter UKF8001 and it worked fine again.  I tried the second WFC1801 and it did the same thing.  What is the problem?  It would be nice to get a resolve to this problem, because the price is reasonable.