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LOCKSMITH™ CLS-125 Series Simplex Water Softeners, Pipe Size 1 1/4 IN - CLS-125
Watts

LOCKSMITH™ CLS-125 Series Simplex Water Softeners, Pipe Size 1 1/4 IN - CLS-125

Watts LOCKSMITH™ CLS‑125 Series simplex water softening systems are high‑efficiency, conventional cation exchange water softeners designed for point‑of‑use or point‑of‑entry applications where softened water is required. Featuring the Watts LOCKSMITH™ control valve, these systems exchange scale‑forming calcium and magnesium ions with non‑scale‑forming sodium ions to produce soft water for a wide range of applications.

Each system utilizes a high‑capacity ion exchange resin housed in a non‑corrosive fiberglass mineral tank with a thermoplastic inner liner. The corrosion‑resistant control valve is operated by an electronic controller that stores key operational history accessible to the user. Metered, demand‑initiated regeneration ensures the system regenerates only when necessary, helping save time, water, and salt. CLS‑125 systems are available in multiple tank sizes and resin capacities to support varying flow requirements.

Specification
  • Features

    • High‑efficiency conventional cation exchange softening technology
    • Watts LOCKSMITH™ control valve with advanced electronic programming
    • Electronic controller stores and displays key operational history
    • Metered, demand‑initiated regeneration
    • Regenerates only when necessary to save water, salt, and time
    • Exchanges calcium and magnesium ions for sodium ions
    • High‑capacity ion exchange resin for effective softening
    • Non‑corrosive fiberglass mineral tank with thermoplastic inner liner
    • Available in multiple resin capacities and flow rate options
Technical specification
  • Unique ref.cls-125-water-softener
  • Product familyWater Quality & Rainwater Harvesting Solutions
  • Product groupConditioning Solutions
  • TypeObject (single object)
  • Date of publishing2026-03-18
  • Edition number1
Related
  • Designed inUnited States
  • Manufactured inUnited States
Classification
  • BIMobject CategoryPlumbing - Other Plumbing
  • ETIM CodeEC011732
  • ETIM NameWater softener
  • UNSPSC namePackaged water treatment systems
  • UNSPSC code47101522
  • Uniclass 2015 CodeSs_55_70_98
  • Uniclass 2015 DescriptionWater treatment systems
  • CSI MasterFormat 2014 Code22 31 00
  • CSI MasterFormat 2014 TitleDomestic Water Softeners
  • OmniClass Number23-27 55 27 11
  • OmniClass TitleWater Softeners

Region availability

North America
Canada
United States
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