Iron and sulfur
Iron and Sulfur Filters
Air-injection, oxidizing-media and cartridge filters for iron, manganese and rotten-egg sulfur in well water, with the limits the makers state.
A softener removes small amounts of clear-water iron, but it fouls quickly above a few ppm and does nothing for red-water iron or hydrogen sulfide. An iron filter goes ahead of the softener and oxidizes the iron so the media can trap it.
Air-injection units keep an air pocket at the top of the tank and need no chemicals; Birm and greensand need dissolved oxygen or a regenerant and a pH within the maker's range. Test iron, manganese, pH and hydrogen sulfide before choosing.
What is your water doing?
Iron and rotten-egg sulfur from a well
Air-injection filters oxidize iron and hydrogen sulfide with an air pocket and backwash them out, with no chemicals.
Iron and manganese without an air system
Media filters oxidize and trap iron on a bed such as Birm, KDF or catalytic media; check the maker's pH and oxygen limits.
A cartridge housing you already own
Iron-reducing cartridges drop into standard 10- and 20-inch big-housing filters.
Check before you order
- Test before you choose. Test iron, manganese, pH and hydrogen sulfide. Up to about 2 ppm of clear-water iron most softeners handle; above about 5 ppm, or with red water, an iron filter comes first.
Every iron filter on one grid
| Image | Product | Type | Media | Max iron | Service flow | Tank | Price seen |
|---|---|---|---|---|---|---|---|
 | iSpring WCFM400K Air-Injection Iron Filter iSpring | Air-injection iron filter | Air Injection | Not stated | 12 GPM | Not stated | Check current price |
 | AFWFilters AIG15-25SXT-34 Air Injection Gold Fleck 2510SXT Air-Injection Iron Filter AFWFilters | Air-injection iron filter | Air Injection | 15 | 12 GPM | Not stated | Check current price |
 | AFWFilters Air Injection Gold Fleck 2510SXT Air-Injection Iron Filter AFWFilters | Air-injection iron filter | Air Injection | 15 | Not stated | Not stated | Check current price |
 | AFWFilters AIG15V-25SXT-1 Air Injection Gold Fleck 2510SXT Air-Injection Iron Filter AFWFilters | Air-injection iron filter | Air Injection | 15 | 12 GPM | Not stated | Check current price |
 | AFWFilters AIG20V-25SXT-34 Air Injection Gold Fleck 2510SXT Air-Injection Iron Filter AFWFilters | Air-injection iron filter | Air Injection | 15 | 12 GPM | Not stated | Check current price |
 | AFWFilters AIP20-25SXT-34 Fleck 2510SXT Air-Injection Iron Filter AFWFilters | Air-injection iron filter | Air Injection | 27 | Not stated | Not stated | Check current price |
 | Pro Products KP02N Iron Filter Pro Products | Media iron filter | greensand | Not stated | Not stated | Not stated | Check current price |
 | Vistar Water Technologies KP65N Iron Filter Vistar Water Technologies | Media iron filter | greensand | Not stated | Not stated | Not stated | Check current price |
 | H&G lifestyles WFRV05 Iron Filter H&G lifestyles | Media iron filter | Not stated | Not stated | Not stated | Not stated | Check current price |
 | H&G lifestyles IWF003 Iron Filter H&G lifestyles | Media iron filter | Not stated | Not stated | 9 GPM | Not stated | Check current price |
 | AFWFilters Iron Pro FMRSN-CARB-10 1 cu ft Iron Filter AFWFilters | Media iron filter | Not stated | Not stated | Not stated | Not stated | Check current price |
 | iSpring WGB32BM Iron Filter iSpring | Media iron filter | greensand | Not stated | 15 GPM | Not stated | Check current price |
 | AFWFilters IRON PRO Fleck 5600SXT Iron Filter AFWFilters | Media iron filter | Not stated | Not stated | Not stated | Not stated | Check current price |
 | AFWFilters Iron Pro Fleck 2510SXT Iron Filter AFWFilters | Media iron filter | Not stated | Not stated | 18 GPM | Not stated | Check current price |
 | iSpring WCFM550K Iron Filter iSpring | Media iron filter | Not stated | 12 | 12 GPM | Not stated | Check current price |
 | H&G lifestyles IWF004-NEW Iron Filter Cartridge H&G lifestyles | Iron filter cartridge | Not stated | Not stated | 15 GPM | Not stated | Check current price |
 | H&G lifestyles IWF009 Iron Filter Cartridge H&G lifestyles | Iron filter cartridge | Not stated | Not stated | 9 GPM | Not stated | Check current price |
 | H&G lifestyles IWF008 Iron Filter Cartridge H&G lifestyles | Iron filter cartridge | Not stated | Not stated | 9 GPM | Not stated | Check current price |
 | Home Master Cfrffe-20BB Iron Filter Cartridge Home Master | Iron filter cartridge | Not stated | Not stated | 15 GPM | Not stated | Check current price |
No products match that filter.
Figures are the makers' own, quoted with their conditions on each product page. Prices change; each product page links to the current price.