Product review (4 stars): Good filter Good Price
The first one I ordered never arrived even though the USPS confirmed the delivery.  Amazon was terrific and had another sent to me with their own courier.  I suggest to Amazon to stop using USPS.  They are completely unreliable.  As for the filter, it's NSA 53 which means it filters out a lot more bad stuff than the NSA 43, so it's a little more expensive, but darn well worth it.  I do suggest buying the name brand.  The generics don't work as well and sometimes even leak.  Plus they don't filter was well.  Don't cheap out when it comes to your water quality - especially if you have children.