Air-injection iron filter · AFWFilters

AFWFilters AIG20V-25SXT-34 Air Injection Gold Fleck 2510SXT Air-Injection Iron Filter

Air-injection iron filter

Updated October 2026

Quick verdict

A sound air-injection iron filter for well water with iron or sulfur.

Strength
Air-injection iron filter.
Trade-off
Check pH and iron limits.
Right buyer
Well water with iron or sulfur.
Service flow (maker)
12 GPM
Control valve
Fleck 2510SXT
Max iron (maker)
15
Media
Air Injection
Voltage
110 V
Product weight
300 lb
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What it does for your water

The AFWFilters AIG20V-25SXT-34 Air Injection Gold Fleck 2510SXT Air-Injection Iron Filter is an air-injection iron filter using Air Injection on a Fleck 2510SXT valve. Its listing gives a flow of 12 GPM. It states iron reduction up to 15.

Air-injection filters hold an air pocket at the top of the tank that oxidizes iron and hydrogen sulfide, then trap and backwash them out, with no chemicals.

Match its limits to a water test: iron, manganese, pH and sulfur. It belongs ahead of a softener so iron never reaches the resin.

From the listing: media Air Injection; model AIG20V-25SXT-34; valve Fleck 2510SXT; flow 12 GPM; iron rating 15.

The listing gives a shipping weight of 300 lb and 3/4" stainless steel bypass valve in the box.

Is it the right unit for your house?

Choose it when

  • Well water with iron or sulfur
  • Protecting a softener from iron

Pass on it when

  • City water without iron

Where it wins and where it loses

Wins

  • Air-injection iron filter
  • Air Injection
  • 12 GPM flow

Loses

  • Check pH and iron limits
  • Needs a drain for backwash

Limits to know about

  • Figures are the maker's or seller's own; check fit and capacity against your water test and your equipment's manual.

Maker's figures

Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.

Model numberAIG20V-25SXT-34Retailer
Product weight300 lbRetailer
Voltage110 VRetailer
Service flow (maker)12 GPMRetailer
Max iron (maker)15Retailer
Control valveFleck 2510SXTRetailer
MediaAir InjectionRetailer

Units to weigh against it

Other iron and sulfur filters in the catalog

Every iron and sulfur filters on one grid · All AFWFilters units we cover

Final verdict

A sound air-injection iron filter for well water with iron or sulfur.

Where to buy

Our links open this exact model's product page. Prices and stock change; check what's included before you order.

Prices change often; the button shows today's price.

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure

Questions buyers ask

What is the AFWFilters AIG20V-25SXT-34 Air Injection Gold Fleck 2510SXT Air-Injection Iron Filter for?
The AFWFilters AIG20V-25SXT-34 Air Injection Gold Fleck 2510SXT Air-Injection Iron Filter is an air-injection iron filter using Air Injection on a Fleck 2510SXT valve. Its listing gives a flow of 12 GPM. It states iron reduction up to 15.