US Water 3 Inch Duplex Alternating Metered Water Softener | Up to 280 GPM

Sku: 140-39-DX

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Regular Price: $35,983.00
Sale Price: $21,590.00
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If you are looking for a premium quality commercial water softener with a 3 inch inlet and outlet, one that is built to last and backed with the best warranty in the business, YOU HAVE FOUND IT!

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Product Description

Product Description

US Water Commercial 3.0" Flow Duplex Alternating Metered Water Softeners

This is a 3” full flow Fleck 3900 duplex water softener with NXT 3200 controllers and 3” Clack meters.  It is a very heavy duty system capable of continuous flow and is available in 300,000 to 1,200,000 Grain Capacities per tank.


  • Two full 3.0" valve for high flow rates
  • Utilizes 8% cross-linked high-capacity ion-exchange resin
  • Utilizes 3200 NXT Programmable Controllers
  • Up to 1,200,000 Grain Maximum Capacity
  • User friendly Fleck 3900 control valves with 3200NXT Controls
  • The 3200 NXT Network Controller uses on-board communication capabilities to link multiple commercial valves (via off-the-shelf CAT3, CAT5, or better cables) for a variety of system types.
  • Safety brine valve with air check
  • Tank Information:
    • 100% composite fiberglass construction
    • Outstanding performance and durability in harsh chemical environments
    • Absolutely will not - and cannot - rust
    • Requires no maintenance
    • Materials of Construction: Polyethylene inner shell (PVDF available)
    • Operating Parameters:
      • Maximum operating pressure: 150 psi
      • Maximum operating temperature: 150°F (fanged) 120°F (threaded)
      • Minimum burst at 600 psi
      • Tested to 250,000 cycles without leakage
      • NSF Certified
      • ASME Tanks Available Upon Request
  • Uses "HUB & LATERAL DISTRIBUTORS" on larger models
  • 5 Year Warranty on Valve, Electronics, & Tanks
  • 1 Year Warranty on Parts & Resin

Note: Resin can be upgraded to 10% for an additional cost

Model Number Cubic Feet Resin* Grain Capacity* Continuous Flow Rate* Peak Flow Rate* Backwash Flow Rate* Resin Tank Brine Tank


15.0 450,000 155 GPM 210 GPM 25 GPM 30" x 72" 39" x 48"


20.0 600.000 185 GPM 250 GPM 30 GPM 36" x 72" 50" x 60"


30.0 900,000 200 GPM 270 GPM 50 GPM 42" x 72" 50" x 60"


40.0 1200,000 205 GPM 280 GPM 65 GPM 48 x 72" 50" x 60"

*Stated values are for each tank

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Additional Information

Additional Information

Availability In Stock
Manufacturer US Water Systems
Warranty 5 Years on Tanks
5 Years on Valve & Electronics
1 Years on Resin

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Ratings & Reviews

Ratings & Reviews

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Product FAQs

Product FAQs

  • According with the picture the tanks shown are skirt based with no lower access, do you have Tripod base which can be bolted to the ground, lower flange for access, and a 6" flanged top opening which makes installation much easier? please advise availability and pricing. Thanks,
    There is a $350 additional charge for tank with tripod base and 6” top and bottom flanged openings, including bottom closure.