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Watts® Twin Tank-Dual Chamber Alternating Water Softener and Conditioner

Reduces water hardness, chlorine, tastes and odors 24/7!

Nothing Like It Anywhere!
Unlike conventional water softeners, Watts® Twin Tank, Dual Chamber systems provide soft, conditioned water continuously. And because each tank has two chambers for two different treatment methods, water hardness, chlorine, tastes and odors are removed, 24/7

Metered valve for greater efficiency
and reduced water consumption.

Features & Benefits

  • Designed for applications when continuous water conditioning is required or desired.
  • Innovative twin alternating dual chamber system works continuously, 24/7!
  • Systems regenerate immediately, so soft water is available upon demand!
  • Soft water is provided when the second tank is being regenerated.
  • Carbon pre-treatment dramatically extends resin life to reduce costs.
  • Vortech® tanks, used for superior performance.


  • Calcium
  • Magnesium
  • Iron*
  • Water hardness
  • Chlorine
  • Chloramines
  • Organic matter
*Additional treatment may be required.

Vortech® Tanks

  • Large surface area for lower pressure drop.
  • Low pressure drop for higher flow.
  • Angled slots for greater lift during backwash.
  • No gravel under bedding is required.
  • Distributor plates are "self cleaning".
  • Backwash duration is reduced.
  • Less water for backwash is required.
  • Riser tubes are permanently attached.
  • Made in the U.S.A.
  • NSF certified.


Coconut Shell
12x40 Mesh
Cubic Feet
 Resin Type
High Capacity Cation
16x40 Mesh
Cubic Feet


Model Number Capacity
Connection Mineral Tank Brine Tank Safety
Float Valve
Color Size Color Size
M3011-9100SM-CR 30,000 Per Tank Metered 1" Gray 10" x 54" Black 18" x 40" Yes