5600 SXT Air Injection Iron Filter

A complete whole-house air-injection filter. One price includes everything listed below.

What's in the box

• Control valve: Fleck 5600SXT air-injection valve with built-in air injection.
• Bypass: 3/4" bypass valve (included).
• Mineral tank: black fiberglass-wrapped mineral tank with support bed and distributor.
• Media: iron-removal filter media, sized to the tank.
• Also included: 1" plumbing adapters, install and service manuals.
• Ships pre-built, ready to install, free in the US.

How it works

The valve draws a pocket of air into the top of the tank. Water passes through the air, which oxidizes iron, manganese and hydrogen sulfide into particles, and the media bed filters them out. Every day the valve backwashes the bed, sends the trapped particles to drain and refreshes the air pocket.

Media benefits

• Removes dissolved iron: clear water with no orange or brown stains
• Protects fixtures, laundry, water heaters and appliances
• Daily automatic backwash sends the trapped iron to drain
• Air injection oxidizes iron, manganese and sulfur with plain air, so no chemicals or chlorine are added

Why this system costs what it does

Not sure which size? Send a water test or tell us your symptoms and we will size it free.

What's in this system

• Fleck 5600SXT air-injection (AIO) control valve
• 3/4" bypass valve
• 10" x 54" black polyglass mineral tank with riser and basket distributor
• Gravel support bed
• 1.5 cu ft Birm
• 1" plumbing adapters

How it ships: direct to you, free in the USA, in more than one box: the valve, the mineral tank, and the gravel and media in bags. You (or your plumber) pour the gravel and media into the tank and thread the valve on before installing. It usually takes 20 to 30 minutes, and step-by-step instructions are included.

• Stops Orange Stains. An air pocket at the top of the tank oxidizes dissolved iron as water passes through, and the media bed filters it out before it can stain sinks, toilets, and laundry. It's rated for up to 7 ppm of iron and up to 5 ppm of hydrogen sulfide.
• For Small Homes Only. This system is sized for homes with 1–2 bathrooms. The 5600 air injection valve is rated for 2.5–3.5 GPM of flow, which isn't enough for larger homes. Need a bigger system? Choose our WaterSoftenerPlus Air Injection Iron Filter or the 2510 AIQ Fleck Air Injection Iron Filter, both available in sizes for up to 6 bathrooms.
• No Salt, No Chemicals. Air does the oxidizing, so there's no chlorine, permanganate, or salt to add, and no extra air tanks or feed pumps. It also adds dissolved oxygen to your water.
• Cleans Itself Daily. A daily automatic backwash flushes the trapped iron down the drain and draws in a fresh air pocket for the next day.
• Easy-Read Digital Valve. The Fleck 5600 AIO SXT valve has a large LCD that alternates between time of day, volume remaining, and days until the next backwash, with a 48-hour backup capacitor that keeps time through an outage.
• Proven Fleck Design. The fiber-reinforced polymer valve runs a simple downflow cycle in a non-corrosive body.
• Test Before You Buy. A water test shows your iron level and whether manganese is present. This system targets iron and hydrogen sulfide, not manganese; if your test shows manganese, contact us and we'll match you with the right system. It works within 20–75 psi water pressure, needs a drain for the backwash, and doesn't soften water. For hard water, add a softener after it.
• Complete System. It includes the 5600 AIO SXT air injection valve, a 3/4" bypass valve, a 10x54 black mineral tank, and the filter media and support bed. Just add plumbing adapters. No brine tank needed.