Fleck 2510 AiQ air injection iron filter with Katalox Light media tank

Fleck 2510 AiQ AIO controller with full-color display

Pentair Fleck 2510 AiQ control valve and modular powerhead

Fleck 1 inch stainless steel bypass valve for 2510 AiQ iron filter

Fleck 2510 AiQ Air Injection Iron Filter with Katalox Light

$1,758.90 - $2,088.90$1,583.01 - $1,880.01

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Fleck 2510 AiQ Air Injection Iron Filter with Katalox Light

The Fleck 2510 AiQ Air Injection Iron Filter removes up to 7 ppm iron and up to 5 ppm hydrogen sulfide ("rotten egg" odor) from well water, along with manganese, with no chemicals or feed pumps. It pairs the Pentair Fleck 2510 AIO valve with the new AiQ controller and Katalox Light media, and it replaces the discontinued 2510 SXT iron filter.

An air pocket at the top of the tank oxidizes dissolved iron and sulfur. Katalox Light then filters out the oxidized particles down to under 3 microns. A daily backwash flushes the captured iron to drain and refreshes the air pocket.

Warranty: 5 years on the Fleck 2510 AiQ valve head and 10 years on the tank. See the full Fleck 2510 AiQ spec sheet (PDF).

What's Included

Fleck 2510 AiQ AIO (Air Injection) Control Valve
Charcoal Poly Glass Mineral Tank
Katalox Light Media (ships separately, loaded on site with the included fill funnel)
1" Stainless Steel Bypass Valve

Connection Fittings of Your Choosing
Fill Funnel
5 Year Warranty on Valve Head (10 Years on Tank)

Fleck 2510 AiQ Iron Filter Key Features

Chemical-Free Air Injection: Oxidizes iron and sulfur inside one tank, with no air compressor, chlorine or potassium permanganate.
Katalox Light Media: Removes iron, manganese and hydrogen sulfide, plus sediment, turbidity and color down to under 3 microns. Works across a pH range of 5.8–10.5.
Long Media Life: Katalox Light typically lasts 7–10 years. It is WQA certified to NSF/ANSI 61 and meets NSF/ANSI 372 lead-free requirements.
4-Cycle AIO Regeneration: Up-flow backwash, air draw, rapid rinse and down-flow service. Each backwash cleans the bed and restores the air pocket.
Full-Color AiQ Display with Quick Start Menu: Plain-language menus and fast setup.
USB-C Port and Benchtop Programming: Program before installation, update software, and pull usage history and diagnostics.
Wrap-Around Light Bar: System status visible from multiple angles.
Modular Powerhead: 4-step teardown, easy grip handle and a backplate hook for service.
NEMA 3R / IP54 Rated: Built for garages, basements, well houses and wet locations.
Hydraulically Balanced Piston: Fleck's time-tested piston, seal and spacer design for reliable service and regeneration.

How the Fleck 2510 AiQ Air Injection Iron Filter Works

Oxidize: Water enters the tank and passes through an air pocket held at the top. Dissolved iron, manganese and hydrogen sulfide oxidize into solid particles.
Filter: The Katalox Light bed traps the oxidized particles and sediment.
Backwash: Once a day, the AiQ valve reverses flow to flush captured iron to drain, draws in fresh air, rinses and returns to service.

For hard water, install a water softener after the iron filter to remove calcium and magnesium.

Fleck 2510 AiQ Iron Filter Specs

Valve	Fleck 2510 AIO with AiQ Controller and Powerhead
Removal Capacity	Up to 7 ppm iron, up to 5 ppm hydrogen sulfide
Valve Material	Fiber-Reinforced Polymer
Inlet/Outlet	3/4" or 1"
Regeneration Cycles	4: Up-Flow Backwash, Air Draw, Rapid Rinse, Down-Flow Service
Regeneration Trigger	Time Clock (Daily Backwash)
Valve Service Flow	2 GPM Continuous, 7.5 GPM Peak
Max Backwash	17 GPM (25 psi drop)
Backwash Capacity	Tanks up to 14" Diameter
Working Pressure	20–75 psi
Water Temperature	34–110°F
Electrical	24V, 50/60 Hz (Transformer Included)
Enclosure Rating	NEMA 3R / IP54
Programming	On-Board or USB-C
Media	Katalox Light (Ships Separately)
Media Filtration	Under 3 Microns
Media pH Range	5.8–10.5
Media Service Flow	4–8 gpm/ft²
Media Backwash Rate	10–12 gpm/ft²
Media Life	7–10 Years
Media Certifications	WQA Certified to NSF/ANSI 61; NSF/ANSI 372 Lead-Free
Warranty	5 Years on Valve Head, 10 Years on Tank

Flow Rates by Tank Size

Tank	Media	Service Flow	Backwash Needed
10" x 54"	1.5 cu. ft.	2.2–4.4 GPM	5.5–6.5 GPM
12" x 52"	2.0 cu. ft.	3.1–6.3 GPM	7.9–9.4 GPM
13" x 54"	2.5 cu. ft.	3.7–7.4 GPM	9.2–11.1 GPM

Fleck 2510 AiQ Iron Filter FAQ

What does an air injection iron filter remove?

It removes up to 7 ppm dissolved (ferrous) iron and up to 5 ppm hydrogen sulfide, the cause of the "rotten egg" smell. It also reduces manganese. Katalox Light also filters sediment, turbidity and color down to under 3 microns.

What is Katalox Light?

Katalox Light is a lightweight filter media with a 10% manganese dioxide coating. It catalyzes the oxidation of iron, manganese and hydrogen sulfide, then traps the particles. It needs no chemical regeneration, and it typically lasts 7–10 years.

Is the Fleck 2510 SXT iron filter discontinued?

Yes. Pentair has discontinued the 2510 SXT. The 2510 AiQ AIO valve replaces it, with a full-color display, USB-C programming and a modular powerhead.

Do I need a water softener too?

An iron filter doesn't remove hardness. If your water is hard, install a water softener after the iron filter.

How often does it backwash?

Once a day by default. Each backwash flushes captured iron to drain and draws in a fresh air pocket for the next day's oxidation.

What size do I need?

Match the tank to your peak flow. The 10x54 handles up to about 4.4 GPM, the 12x52 about 6.3 GPM and the 13x54 about 7.4 GPM. Your well pump must also deliver the backwash rate: about 6.5, 9.4 and 11.1 GPM respectively.