RF-9999-6 PUR 3-Stage Mineral Clear Faucet Filter Replacement Cartridge (6-Pack)
Product Review (submitted on May 11, 2009):
Faucet mounted water filter is the cheaper option for water filtration. I do it mostly for the taste and mostly likely there are health benefits as well. I spent $60 for the new faucet (existing did not have a thread) $40 for the filter. Yearly filters cost $40. This is the cheaper option.