Nova Water Filtration system is $495.
It's a lot better than people who try to sell you one for thousands of dollars.
Many people are satisfied with this system and it's $100 per year to replace the three filters, unless one wants to do it themselves. They are heavy when removed and it's always a possibility, one might hurt themselves.
It's a lot easier for someone else to do it and write the check.
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"It doesn't cost "nuttin", to be nice". 
MOM
I just want to do the right thing! Uncle Joe, (my hero).