Aer-Pro – Removes Iron and Sulfur in one application. No longer will you need to rely on chemical tanks or chlorine injections. The RoyalSoft Aer-Pro system maintains an air pocket in the top of the tank while the system is in service. As the water passes through the air pocket, iron and sulfur are oxidized. The Aer-Pro Filter is bedded with a Birm media that removes the iron and sulfur from the water. This system can remove up to 8ppm (parts per million) of hydrogen sulfur and up to 7ppm of Iron. The regeneration process also adds a fresh air pocket to the system. The system comes equipped with a RoyalSoft F-79 Air Injection Control Head that automatically backwashes the system to clean the media and flush the remaining waste through the drainage line. By utilizing a patented process in the control valve, the Aer-Pro is able to put the whole oxidation process inside one tank, keeping maintenance costs and regeneration time to a minimum.