Fleck · Industry-Standard Water Softening

The Fleck 5600 SXT Digital Metered Whole House Water Softener

The most trusted residential softener valve ever built — proven AC drive, meter-initiated regeneration, and decades of field-tested reliability in millions of homes.

✓ Meter-Initiated Regeneration ⚙️ Proven AC Drive 6 Capacity Options Backlit LCD

The benchmark of residential water softening: The Fleck 5600 SXT is the most widely installed softener valve in North America. Its straightforward AC-driven design, easy programming, and parts availability everywhere make it the safe, serviceable choice — whether you're a homeowner or an installer who needs reliability you can stand behind.

Why It Works

Built to Perform, Designed to Last

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Clear LCD Display

Easy-to-read backlit screen with intuitive programming. Set your hardness level, capacity, and regeneration time in just a few minutes.

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Meter-Initiated Regen

Regenerates only after a set volume of water is used — not on a fixed timer — so you're never wasting salt or water unnecessarily.

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Proven AC Drive

The 5600's AC motor design has been refined over decades of residential installations and is known for long service life and predictable performance.

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Day Override Option

The day override prevents you from ever running out of soft water — ideal for households with variable water usage patterns.

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Downflow Brine Draw

12V downflow brine system delivers thorough resin bed regeneration for consistent softening performance cycle after cycle.

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Fittings & Manual Included

Comes complete with brine line installation fittings and a full owner's manual. Ready to install right out of the box.

Technical Specifications

System Specifications

Valve Model	Fleck 5600 SXT
Inlet / Outlet	3/4" (with 1" NPT Noryl bypass included)
Bypass Valve	3/4" NPT and 1" NPT Noryl Bypass — included
Control Type	Digital metered, meter-initiated regeneration
Motor	AC motor drive
Display	Backlit LCD
Brine System	12V downflow brine draw
Regeneration	Meter-initiated with day override option
Capacity Options	6 grain capacity configurations available
Power	110V AC transformer included

Compatibility & Applications

System Requirements

The Fleck 5600 SXT is compatible with standard mineral tank configurations for whole house water softening. Works with all major resin media types including standard strong acid cation (SAC) resin, fine mesh resin for iron reduction, and specialty media. The 3/4" inlet/outlet with included 1" NPT Noryl bypass fits most residential plumbing configurations. Available in multiple grain capacities to match your household size and water hardness level — consult your water test results before selecting tank size. Replacement parts and service kits are widely stocked, making long-term maintenance simple.

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Salt Savings

Meter-initiated regeneration means the system only runs when needed — not on a fixed schedule — reducing salt and water consumption.

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Easy Programming

The backlit LCD and intuitive interface make setup straightforward. Most installations are programmed in under 10 minutes.

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Whole House Coverage

Six grain capacity options ensure you can match the right system size to your household water usage and hardness level.

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Industry Standard

The most widely installed Fleck valve in North American homes — with parts and service support available virtually everywhere.

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