Product review (5 stars): Save Some Money This Works Just as Well as the Brand Name
I saved a nice bit of change using this product rather than the PUR brand.
Activated Charcoal is a commodity, that is it is valued as its function not on brand names or extraneous factors.  The stuff is easy to make and inexpensive.  But the price goes up when a brand name is attached.  The brand usually needs to advertise and spend other moneys to keep it's name in the public eye.  With more complex things, brands might make a difference, but I can't tell that this filter is any different in its function that it's fancier named rivals.