I have a well & have used several drip-type and faucet mounted filters to remove chemicals and particulates. NONE work as well as Symple Stuff filters. My only complaint can be viewed as a positive or a negative, but people need to be aware of the life of the filters.  I have been changing my filters every 2 weeks (when the water I put in takes over 8 hours to filter through - you are supposed to change when the water reaches 6 on the meter and I push it a little further). This could be considered expensive, but I am figuring about [$] per day for the cleanest water I have ever tasted, used to make tea and coffee, and cooked with. If you need a filter, this is the only filter I will ever use again.