Fleck 2510AIO 3.5 Katalox Light Iron Filter & Fleck 5600SXT 80,000 Grain Water Softener
Removes iron, manganese, and the rotten egg smell, then softens very hard water. Sized for 5 or 6 people on 16 to 30 grains of hardness, or 4 people at 21 to 30. Not sure? Text Aidan your test.
Watch This Before BuyingMeet Aidan, your water treatment expert
Fleck 2510AIO 3.5 Katalox Light Iron Filter & Fleck 5600SXT 80,000 Grain Water Softener
Removes iron, manganese, and the rotten egg smell, then softens very hard water. Sized for 5 or 6 people on 16 to 30 grains of hardness, or 4 people at 21 to 30. Not sure? Text Aidan your test.
Watch This Before BuyingMeet Aidan, your water treatment expert
Is This Package Right for Your Water?Iron, hardness, and sulfur each behave differently depending on your water chemistry, flow rate, and household size. Aidan has helped thousands of well water homeowners pick the right iron filter and softener pairing for their specific water test and plumbing setup. Call 800-460-5810 or text Aidan at 443-277-2204 with your water test results for a free, no-pressure recommendation.
✓3.5 cubic foot iron filter tank (14" x 65" Vortech tank, ships empty), handles up to 30 ppm iron, 15 ppm manganese, and 10 ppm hydrogen sulfide (rotten egg smell)
✓Fleck 2510AIO control valve with Air Injection technology, no chemicals, no chlorine feed, regenerates itself with fresh air
✓3.5 cubic feet of Katalox-Light iron and sulfur removal media, ships in separate bags, loaded into the tank at install
✓Stainless steel bypass valve, pre-installed on the control valve; your plumber supplies the pipe adapters
Water Softener System 2
✓Fleck 5600SXT digital control valve, electronic demand regeneration (it counts the gallons you use); program settings are kept without power
✓Softener tank (13" x 54" Vortech tank, ships empty)
✓2.5 cubic feet of 10% crosslink softener resin, ships in separate bags, loaded into the tank at install
✓80,000 grain softener, for 5 or 6 people on about 16 to 30 grains of hardness, or 4 people at about 21 to 30
✓Brine (salt) tank with safety float
✓Stainless steel bypass valve, pre-installed on the control head
Included With Both Systems
✓Free shipping to all lower 48 states, ships freight on a pallet
✓One fill funnel for loading the Katalox-Light and the softener resin
✓Tech support 7 days a week, call 800-460-5810 or text Aidan at 443-277-2204
What ships: two empty tanks, both control valves with bypass valves already on, the brine tank, one fill funnel, and the Katalox-Light and resin in separate bags. A filled tank is too heavy to ship without damage, so the media goes in through the funnel at install. Not included: drain tubing and pipe adapters, which your plumber supplies. We recommend installation by a licensed plumber, and Aidan supports your plumber by phone at 800-460-5810.
Iron Filter (Fleck 2510AIO)
Model
Fleck 2510AIO with Katalox-Light media
Technology
AIO Air Injection (no chemicals, no chlorine feed)
Media
Katalox-Light, 3.5 cubic feet included (ships in separate bags)
Tank Dimensions
14" x 65" Vortech tank (no gravel bed)
Iron Removal
Up to 30 ppm (ferrous and ferric)
Manganese Removal
Up to 15 ppm
Sulfur (H2S) Removal
Up to 10 ppm
Sediment Filtration
Down to 3 microns
Service Flow
Up to 20 gallons per minute
Well Flow for Backwash
About 12 to 15 gallons per minute
pH
Works best near pH 8. If yours is lower, send Aidan your test before you order.
Cleaning Cycle (Backwash)
Every night at 2 AM (factory setting); can be set to every 2 to 4 days
Media Life
6 to 8 years, then only the media is replaced
Connections
Stainless steel bypass valve (pre-installed); your plumber supplies the pipe adapters
Power
120V standard outlet
Warranty
5-year valve / 10-year tank
Water Softener (Fleck 5600SXT)
Model
Fleck 5600SXT Electronic Demand
Resin
10% crosslink softener resin, 2.5 cubic feet
Grain Capacity
80,000 grain size. Holds about 75,000 grains on the full salt setting, 60,000 on a salt-saving setting
Service Flow
Up to 15 gallons per minute
Tank
13" x 54" Vortech mineral tank (ships empty)
Brine (Salt) Tank
Included, with safety float
Bypass Valve
Stainless steel (pre-installed)
Regeneration
Electronic demand, counts gallons
Power Outage
Program settings are kept without power
Salt Use
About one 40 lb bag every 30 to 45 days in Aidan's 3-person home; more for bigger households or harder water
Connections
Through the bypass valve (your plumber supplies the pipe adapters)
Household Size
5 or 6 people on about 16 to 30 grains of hardness, or 4 people at about 21 to 30
Warranty
5-year valve / 10-year tank
Both Systems
Household Flow
Up to 15 gallons per minute through both systems
Shipping
Free to the lower 48 states by freight; the media bags may arrive in a separate shipment
Installation
Licensed plumber recommended; Aidan supports your plumber by phone
⚡
We recommend installation by a licensed plumber; Aidan supports your plumber by phone at 800-460-5810. Both tanks ship empty, and the media goes in at install. The iron filter needs a 120V outlet and a drain line (for backwash). The softener needs the same: 120V outlet and a drain. Drain tubing is not included, and your plumber supplies the pipe adapters.
Correct Installation Order (This Matters)
Well / Pressure Tank→Sediment Filter (optional)→Iron Filter→Water Softener→House
⚠️ Order matters: The iron filter must come before the water softener. Dissolved iron fouls softener resin and shortens its life. Removing the iron first protects the softener resin, which on hardness alone can last for decades.
Step 1 - Iron Filter (Fleck 2510AIO)
Shut off the main water supply and relieve pressure at a nearby faucet
Position the tank on a level surface, near a drain (backwash sends water out during regen)
Load the media: the tank ships empty. With the valve off the tank, cover the top of the center tube and pour the Katalox-Light in through the included funnel
Connect inlet and outlet to the main water line through the bypass valve (water direction is marked on the valve head)
Run the drain line from the valve to a floor drain, utility sink, or standpipe; your plumber sizes it for the backwash flow and the length of the run
Hand-tighten the valve, then only a quarter to half turn with channel locks - over-tightening can crack the tank lip
Plug the valve into a standard 120V outlet
Open bypass slowly, let the tank fill, then switch to service
Set the time of day on the 2510AIO valve. It comes programmed to clean itself (backwash) every night at 2 AM, which keeps the air pocket fresh
Step 2 - Water Softener (Fleck 5600SXT)
Position the softener downstream of the iron filter
Load the resin: the tank ships empty. With the valve off the tank, cover the top of the center tube and pour the resin in through the funnel
Connect inlet and outlet to the main water line - water direction is marked on the valve head
Run a 1/2" drain line from the valve to a floor drain, utility sink, or outside (max 20 feet)
Plug in to a standard 120V outlet
Add water softener salt to the brine tank; keep the salt level higher than the water level
Open bypass slowly, fill the resin tank, then switch to service
Program the 5600SXT valve: time of day, water hardness, and tank capacity
Run the valve's start-up steps; Aidan walks your plumber through them by phone
Need help? Call 800-460-5810 or text Aidan at 443-277-2204, 7 days a week. He supports your plumber through the install and both valves' settings. No printed manual ships; the install guide and videos are online.
✨
Two simple routines: The iron filter self-regenerates using air injection. You don't dose it with potassium permanganate or chlorine. The softener just needs salt. That's most of it.
Iron Filter Maintenance
Every DayAutomatic backwash. The 2510AIO valve cleans itself every night at 2 AM (factory setting): it refreshes the air pocket and flushes iron and sediment out the drain. No action needed from you. On light water use it can be set to every 2 to 4 days.
AnnuallyTest your water. Confirm iron, manganese, and sulfur are still removed. If iron breakthrough starts showing up in toilet tanks or fixtures, regen frequency may need to increase.
Every 6-8 YearsReplace the Katalox-Light media. How long it lasts depends on your water use and iron level. Only the media is replaced; the tank and valve stay.
Water Softener Maintenance
MonthlyCheck salt level. Keep the salt level higher than the water level; Aidan keeps a couple of bags in the brine tank.
AnnuallyClean the brine tank. Let the salt run low and clean out any salt bridges or mushing that can impair regeneration.
RarelyReplace the softener resin. On hardness alone resin can last for decades; iron that reaches it shortens its life. Signs of worn resin: hard water returning, increased salt usage, or resin beads in water.
As NeededCheck the venturi and injector. If regeneration seems sluggish, the venturi assembly may need cleaning. Takes 5 minutes with no tools.
Pro tip: The Fleck 2510AIO's air injection technology (AIO) is what makes this system nearly maintenance-free. There's no chemical feed, no potassium permanganate, no chlorine injection. The air bubble in the head oxidizes iron as it passes through, and the Katalox-Light media catches the precipitate. Questions? Call 800-460-5810 or text Aidan at 443-277-2204.
"I have well water with over 20 ppm ferrous and 7 ppm of ferric iron, along with manganese and some sulfur. I was rejected by local water companies saying they could not help me with my high iron issues. I purchased two Fleck 2.5 cu. ft. 2510AIO Iron Filter tanks with Katalox-Light media and air injection from Mid-Atlantic Water. ... Wow...and now the tanks reduced the iron to literally zero! Highly recommend this type of iron filter to remove very high levels of iron!" ★★★★★
Amy H., Review of the 2.5 cu ft iron filter
"Turned undrinkably ferrous well water clean and clear with no odor ... So far so good after a couple weeks of consistent use and no noticeable drop in flow or pressure." ★★★★★
Anonymous, Review of the 3.5 cu ft iron filter
"This is my 4th iron removal system in 20 years and the first one to fully work - no iron taste in the water at all so far. I’ve only had it a week but that is a first." ★★★★★
Robert W., Review of the 2.5 cu ft iron filter
What's In This Package
Installed in this order on your main water line.
Stage 1
Large-Home Iron Filter for Well Water, 3.5 cu ft (5+ Bathrooms)
Removes iron, manganese, and sulfur smell (high-flow homes)
You save $1,095.00 when purchased as a complete system
Video Guides
Watch our iron filter and water softener guides
Iron Filter vs Water Softener (Do You Need Both?)
Iron Filters for Well Water: The Complete Guide (32 Years of Experience)
Complete Guide to Water Softeners
Best Iron Filter for Well Water (What Actually Works)
Best Water Softener for Well Water
Can a Water Softener Remove Iron? (The Truth)
IRON FILTER Cost? (Real Numbers)
The Complete Iron + Hard Water Solution for Large Well Water Homes
3.5 cu ft Katalox-Light Iron Filter + 80,000 Grain Fleck 5600SXT Softener
Well water with both iron and very hard water needs two systems. A softener on its own handles only low levels of iron, and an iron filter does nothing for hardness. This package pairs our largest iron filter (the 3.5 cu ft Fleck 2510AIO with Katalox-Light) and the Fleck 5600SXT 80,000 grain water softener. The iron filter removes up to 30 ppm iron, 15 ppm manganese, and 10 ppm sulfur with no chemicals. The softener uses 2.5 cu ft of 10% crosslink resin and demand-based regeneration. The iron filter goes first and protects the softener resin from iron fouling, and the softener handles the scale and soap problems the iron filter can't touch.
The 80,000 grain softener fits 5 or 6 people on water of about 16 to 30 grains of hardness, or 4 people at about 21 to 30. If your water is under about 15 grains, 5 or 6 people fit the 2.5 cu ft + 64,000 grain package. The 3.5 cu ft iron filter gives up to 20 gallons a minute and needs about 12 to 15 from the well to backwash. Most homes buy the 2.5 cu ft size, so send Aidan your well's flow rate with your test. Free shipping to the lower 48 states, 5-year valve warranties, 10-year tank warranties, and tech support from Aidan 7 days a week.
✔NSF/ANSI 61 Certified Iron Media
✔Katalox-Light Iron Media
✔Fleck 2510AIO Air Injection
✔Fleck 5600SXT Softener Valve
✔10% Crosslink Resin
✔Electronic Demand Regen
✔Tech Support 7 Days a Week
Feature
Our System
Others
Iron Filter Valve
✔
Fleck 2510AIO AIO Air Injection
Generic Timer Valve
Softener Valve
✔
Fleck 5600SXT Electronic Demand
Timer-Based Regeneration
Iron Filter Media
✔
Katalox-Light (Removes up to 30 ppm iron)
Standard Greensand or Birm
Softener Resin
✔
10% Crosslink Resin
Standard 8% Resin
Warranty
✔
5-Year Valves / 10-Year Tanks (Both)
1-Year Limited
Expert Support
✔
7-Day Phone, Text & Email
Limited or None
Iron Filter Valve
✅ UsFleck 2510AIO AIO Air Injection
❌ ThemGeneric Timer Valve
Softener Valve
✅ UsFleck 5600SXT Electronic Demand
❌ ThemTimer-Based Regeneration
Iron Filter Media
✅ UsKatalox-Light (Removes up to 30 ppm iron)
❌ ThemStandard Greensand or Birm
Softener Resin
✅ Us10% Crosslink Resin
❌ ThemStandard 8% Resin
Warranty
✅ Us5-Year Valves / 10-Year Tanks (Both)
❌ Them1-Year Limited
Expert Support
✅ Us7-Day Phone, Text & Email
❌ ThemLimited or None
✔ Got a Question About Your System?
Whether you need help with installation order, plumbing layout, programming the Fleck 2510AIO or 5600SXT valves, adding Katalox-Light media, or troubleshooting either system, Aidan is available 7 days a week. Real answers from someone who has been doing this for 29+ years.
📞 Call Us800-460-5810
✉️ Email Supportsupport@midatlanticwater.net
🕒 Live Hours7 days a week
Frequently Asked Questions
If your water has hardness above 7 grains per gallon (gpg) in addition to iron, yes. The iron filter removes iron, manganese, and sulfur but doesn't touch calcium and magnesium (hardness). Without a softener, you'll still get scale on fixtures, spots on dishes, dry skin, and shortened appliance life. If you're not sure, send us your water test results and we'll tell you.
The iron filter always goes before the softener. The order from your well is: pressure tank > sediment filter (if applicable) > iron filter > water softener > house. Dissolved iron fouls softener resin and shortens its life, so removing iron first protects the softener resin. If your test also shows low pH, an acid neutralizer goes in too, and Aidan sets its place from your test.
The Fleck 2510AIO with Katalox-Light media removes up to 30 ppm of iron, 15 ppm of manganese, 10 ppm of hydrogen sulfide, and sediment down to 3 microns. It handles ferrous (dissolved) and ferric (particulate) iron. Iron bacteria is a separate problem: if you see slime or biofilm in toilet tanks, call us before you order. Shocking the well with chlorine only helps for a few days. Aidan usually points those wells to our ozone version of the Katalox iron filter, or a UV light after the filter.
We recommend installation by a licensed plumber, and Aidan supports your plumber by phone at 800-460-5810, 7 days a week. Both tanks ship empty, so the Katalox-Light and the softener resin are loaded through the included funnel at install. Each system needs a standard outlet and a drain nearby; drain tubing is not included. The bypass valves come already installed on both control valves.
The Fleck 5600SXT uses electronic demand regeneration. It counts gallons and only regenerates when the resin is actually exhausted. Aidan's own home (three people) goes through about one 40 lb bag every 30 to 45 days; bigger households and harder water use more.
The 2510AIO needs very little upkeep. It cleans itself every night at 2 AM (factory setting), pulling in fresh air and flushing iron and sediment to the drain, with no chemicals. On light water use it can be set to every 2 to 4 days. The Katalox-Light media typically lasts 6 to 8 years, depending on water use and iron level, and then only the media is replaced. Beyond that, run a yearly water test to confirm the iron is still being removed.
Pick the package by how many people live in the home and how hard the water is.
Iron filter: the 1.5 cu ft fits about 2 to 4 people with lower iron. The 2.5 cu ft fits 4 to 10 people.
Softener: the 48,000 grain fits up to 4 people on water up to about 15 grains of hardness. The 64,000 grain fits 5 or 6 people on water up to about 15 grains, or 3 or 4 people on harder water (up to about 30 grains for 3, about 20 for 4). The 80,000 grain is for 5 or 6 people on harder water, or 4 people at about 21 to 30 grains. Over 30 grains, or 7 or more people: text Aidan your test first.
Not sure? Send Aidan your water test (call 800-460-5810 or text Aidan at 443-277-2204) and he will tell you which package fits.
We recommend a sediment filter upstream of both systems if you have visible particles, sand, or sediment in your water. A 20" Big Blue sediment filter installed before the iron filter traps particles that could foul the valve. If your water is visually clear, you usually don't need one. We can tell you by looking at your water test or a photo of your tap water.
Fleck 2510AIO 3.5 Kata...$4,695.00
Why Our Package Costs More
Professional-Grade Components vs. Budget Alternatives
What You Get With Budget Packages
Budget iron filter and water softener packages typically cut corners where it counts: timer-based regeneration that wastes salt and water, chemical-feed iron filters that need potassium permanganate refills, standard 8% crosslink resin that degrades faster with iron, and partial media fills that require immediate replenishment. For larger homes, cheap systems fail even faster because they weren't sized for the volume.
The Real Cost Comparison
Budget Iron Filter + Softener (large home)
$2,817 to $3,521
❌Lifespan: Fails in 3-4 years
❌Result: Frequent repairs, poor water quality, leaks
❌Support: None
$1.00-1.40/day (more salt, media refills, shorter resin life)
Best Long-Term Value
Our Professional Package
$4,695
✅Lifespan: Lasts 15+ years with routine media replacement
✅Result: Done right the first time, peace of mind
✅Support: Lifetime USA Support
$1.29/day (10+ year system life, less salt waste, no chemical refills)
Bought separately, the 3.5 cu ft iron filter ($3,295) and the 80,000 grain softener ($2,495) list at $5,790. As a complete system configured together, $4,695 saves $1,095. The price also covers Katalox-Light media that lasts about 6 to 8 years before it is replaced, 10% crosslink resin, demand-based regeneration, and tech support from Aidan 7 days a week.
What You Get With Our System
This package pairs the Fleck 2510AIO iron filter, which uses AIO Air Injection and Katalox-Light media with no chemicals needed, and the Fleck 5600SXT electronic demand softener valve. The softener comes with 2.5 cubic feet of 10% crosslink resin. Both mineral tanks carry 10-year warranties and both valves carry 5-year warranties. The full 3.5 cubic feet of Katalox-Light and the 2.5 cubic feet of resin ship with the order in separate bags, so both tanks are filled at install and you're not hunting for media on day one.
Contact Us
800-460-5810
We're here to help.
1-Year Risk-Free Guarantee
Well Water Homeowners Nationwide Trust This Package
If this iron filter and water softener package fails to correct iron staining and eliminate hard water problems within 30 days of installation, contact us and we'll work with you to resolve the issue. Whether that means troubleshooting your setup, adjusting valve programming, replacing a component, or issuing a full refund, we stand behind the system. You don't ship heavy equipment back at your expense. We handle the logistics.
~10,000Customers Nationwide
455+Verified Reviews
After 29+ years of selling and supporting well water treatment systems, we know what works. This iron filter and water softener combination is what we recommend for most well water homes with both iron staining and hardness. We've shipped more than 100 of these iron filter and softener packages since 2023. We pair proven components (Fleck 2510AIO valve with AIO air injection, Fleck 5600SXT valve, Katalox-Light media, 10% crosslink resin) and stand behind every system.
The Industry "Return Policy" Trap
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Most online retailers offer a "return policy" that requires you to ship both systems back at your expense. That's 300+ pounds of wet equipment on a pallet. After paying $300+ in return freight, you often discover a 15-25% restocking fee on top. It's designed to make returns impractical. For something as essential as well water treatment, that's not a real guarantee.
How Our Real Guarantee Works
1
It Doesn't Fix the Water
If your water test still shows iron, manganese, sulfur, or hardness after installation, that's on us. Both systems should be performing. Period.
2
You Call Us, We Fix It
We troubleshoot with you: water test results, installation order, valve programming, flow rates. Most issues resolve with a simple adjustment to the 2510AIO backwash cycle or the 5600SXT hardness setting.
Full Refund, No Hassle
If we can't resolve the issue, you get a full refund. We handle the logistics. You don't ship anything back. That's the difference between a real guarantee and a return policy.
This is what we recommend when a well has both iron and hard water. The Fleck 2510AIO with Katalox-Light handles the iron, sulfur, and manganese without chemicals. The Fleck 5600SXT handles hardness with demand-based regen so you're not wasting salt. Two proven systems, sized to your home, with 5-year valve and 10-year tank warranties.