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Calmat Plus is designed for commercial or residential applications when it is required a higher maximum water flow capacity up to 15 m³/h ~ 66 US GPM and up to 3 inch pipes. Calmat Plus is a unique alternative to water softeners that solves hard water problems without using chemicals or salt. It works completely maintenance-free and is very simple to install, no tools or plumbing are needed. It is an eco-friendly water treatment system that protects your piping system and appliances against existing scale deposits and rust. Calmat prolongs the lifespan of household appliances.


Calmat Plus works on a frequency range between 3-32 kHz with different frequency peaks (wobbling distribution). The secret to the right performance of physical water treatment lies in the composition of these impulses. We have developed a program to fine-tune them for over 30 years.



Model: 1-6005-000

  • Gentle reduction of scale deposits in the whole piping system.
  • Prolongs the lifespan of appliances.
  • Less time and money spent on repairs and maintenance in your home.
  • Can successfully treat water with hardness level up to 1000 ppm (59 gpg).
  • Retains important minerals in the water.
  • Considerable savings in washing and cleaning agents.
  • Faster cleaning of kitchen and bathrooms.
  • Suitable for all pipe materials.
  • Especially designed for commercial use & high residential use.
  • Very low electricity consumption at 4.3 W.
  • Quality product made in Germany since 1948.
  • Available in over 50 countries worldwide.
  • Maximum capacity: 15 m³/h ~ 66 US gpm.
  • For pipe diameter of up to 3” ~ 76 mm.
  • Choose between 6 programs and 8 Languages.
  • Choose between different pipe diameters, perfect for up to 3 inch diameter.
    (perfect for commercial and larger residental applications)
  • Tested for hardness levels over 1000 ppm (59 GPG).
  • Is German TÜV-certified and is CE, CUL and UL listed
  • Works on all piping materials (Copper, Steel, Iron, Galvanized, Plastic, PVC, etc.).
  • Works on all pipe configurations including, horizontal, vertical, 'L' shape, 'T' shape pipes, etc.
  • Can be used without or with a water softener. When used without a water softener Calmat will retain the healthy minerals in your water. When Calmat PLUS is used with a water softener it will help the water softener work more efficiently by allowing it to use a noticeably lower amount of salt.

  • The automatic memory program keeps Calmat running correctly. In case of the unlikely event of a power failure, Calmat automatically resets back to the last program once power is regained.

Calmat PLUS Electronic Anti-Scale Water Treatment System

Rating is 4.8 out of five stars based on 6 reviews
SKU: 1-6005-0000
C$749.98 Regular Price
C$599.98Sale Price
    • Model: 1-6005-000.
    • Maximum capacity: 15 m³/h ~ 66 US gpm.
    • Dimensions (L x W x H):
    • 27.4 cm x 25.4 cm x 8.1 cm (10.8 in. x 10 in. x 3.2 in.).
    • Weight: 1.5 kg (3.3 lb.).
      Pkg Weight: 4.6 lbs.
    • Maximum pipe diameter: 3” ~ 76 mm.
    • Wattage: 4.3 Watt.
    • Power supply: 100 - 240 V~ 50/60 Hz (Standard North America).
    • Impulse cables: 4 cables x 5 m 197".
    • Output: 4 x capacitive.
    • Frequency range: 3-32 KHz.
    • Measurements (Main Unit): 150/180/50 mm 5.9”/7.1”/2”.
    • A minimum of 36-43 inches is needed for installation (8-10 inches each impulse cable plus 1 inch of space in between each cable)
    • Quality made in Germany since 1948, sold in over 50 countries worldwide.


Rated 4.8 out of 5 stars.
Based on 6 reviews
6 reviews

  • RenosAug 17, 2023
    Rated 5 out of 5 stars.
    Review after 4 weeks

    Hardest part was just coiling the four cables. Besides that, Im very happy with this product. After about four weeks of use, I've noticed a clear reduction in calcium/lime buildup on my faucets. An added bonus is that the faucet handles now turn much smoother, which might be because of the reduced buildup. Not sure if this model was overkill, but Im glad I got it.

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  • Josh TrainNov 13, 2023
    Rated 5 out of 5 stars.