Iron Filter with air injection (AIO) removes ferrous/ferric iron

https://www.softprowatersystems.com/pages/choosing-iron-filter-size-diy

Iron Filter with air injection (AIO) removes ferrous/ferric iron and hydrogen sulfide from well water; features Fleck 5600SXT control valve, Katalox Light media, 1-inch NPT bypass, NSF/ANSI 61 components, and auto backwash.