Iron and Sulphur filtration from water can be accomplished many different ways. We feature and recommend chemical free oxidation using, you guessed it, air! Our FOC and FOB Chemcal Free Iron and Sulphur filters do not contain any filter cartridges to replace or chemicals or salt to add. This method is the easiest and most inexpensive way to significantly reduce iron content from your families household water. This process is so successful that you will actually forget that you once had Iron and Sulphur in your water We offer easy do it yourself installation, selection and Iron and Sulphur water filter advice with our youtube videos and in our blog. Our Iron and Sulphur water systems use Clack water treatment valves which are Made in USA and the Iron and Sulphur filters themselves are assembled in Canada. We offer FREE shipping coast to coast in Canada. Whether you are looking for an Iron only or combination Iron and Sulphur water filter we have what you need, all at discount prices. Be sure to check out the videos on our youtube channel GarytheWaterGuy.com to learn more about how these work. Did I mention the FREE shipping in Canada?