3US-PF01 Filtrete Undersink Filter Replacement Cartridge
Product Review (submitted on July 6, 2012):
My family and I really enjoy the taste of your city water now... there is a HUGE diffrents in look as well as taste... The only down side to it is that we only get about 5 months use out of one... That to me shows i guess the Bad Shape our water is in.... Great Filter!!!