We have well water and the original system had a sediment filter. Our plumber recommended an iron filter as our water test showed moderate levels of iron. I researched several options and found that ISpring is the cheapest and also a very good product that seems to work very well. Although we ordered from Revain I had some questions about the product and tried to contact the company directly by phone. Seems they are having some technical issues with their phone system so I emailed their support department and I was contacted by FRANCIS who helped one of their techs get me on the phone. Also because it was initially difficult for me to reach the company by phone, he offered to send me additional accessories that proved to be very useful during installation (flexible connecting hoses with shut-off valves) and when a filter change was necessary. They were installed in about a week and there was a noticeable change in the taste of the water without a noticeable change in water pressure. Very satisfied with the product. Considered a much more expensive option - but not necessarily. iSpring is doing a very good job - so far!
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