hs38 Water Conditioner


Designed to protect a single piece of equipment, such as a tankless water heater, from the effects of scale. Decreases the risk of a waterborne pathogenic contamination. Other popular applications include small studio apartments and recreational vehicles (RVs). Fits Pipes up to 1" Outer Diameter.

Do it yourself installation. Professional installation may be available in your area and typically costs $175. Contact us for additional details.

Fits Pipes up to 1"

(Avg 4.7 out of 5 stars)
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Fits Pipes up to 1" Outer Diameter. Designed to protect equipment such as a tankless water heater from the effects of scale. Also recommended for small apartments and RVs.

Popular Applications 

  • Small homes.
  • Apartments.
  • RVs.
  • Tankless water heaters.

Main Benefits

  • Dissolves and removes existing scale.
  • Prevents new scale accumulation.
  • Financial and Environmental Benefits. 

Financial and Environmental Benefits

  • Reduces energy consumption.
  • Increases the efficiency of water heating equipment.
  • Replaces salt-based Softeners.
  • Average one year payback period.

Additional Benefits

  • Non-intrusive and easy to install - no plumbing modifications required.
  • Propagates the Hydropath signal along with the entire water system.
  • Provides 24-hour protection.
  • Does not interfere with other electrical systems.


  • Signal monitor light
  • PSU: Input 120V AC 60Hz
  • Unit: Input 12V AC/DC
  • Max power: 1.2 W
  • Weight approx: 175 grams
  • Dimensions: H 110 x W 67 x D 30mm
  • Maximum pipe diameter 38mm OD
  • Lead length 3m

Installation of this device does not replace periodic equipment preventative maintenance procedures, such as purging of your water heater. 

HydroFLOW residential devices are designed for ease of installation. With this said, it may be necessary to have your unit installed professionally, depending on the configuration of your plumbing system. 

For additional technical information about these products, please visit our technology page. If you have any questions or wish to locate a local representative, please contact us.

About HydroFLOW hs38

The hs38 is a descaler for small apartments, RVs and tankless Water Heaters. It is designed to protect your heating system, as well as appliances such as dishwashers and washing machines, and to make limescale-stained tabs, sinks and bathtubs easier to clean.

HydroFLOW General Brochure HydroFLOW Residential Brochure

Data sheet
Weight175 Grams
Power Supply120V AC 60 Hz
Unit12V AC/DC
Max. Power Consumption1.2 W
Height110 mm
Width67 mm
Depth30 mm
Max. Pipe Diameter25.4 mm OD
Lead Length3 M
IndicatorsSignal Monitor Light
This somehow works
I am a licensed plumber, this is one of the greatest products I ever used. You make a wonderful product.
Kane S.
Andrew White
Angela Biolo
Easy to install and reasonable. Way cheaper than water softener and safer for the environment.
Ray Johnson
We had it installed now for 2 months. No new deposit on the the sinks or dishes
Dan Kits
Low profile, easy to install and no more salt. Very happy about this purchase and highly recommend.
James Pierce
James K
Bonnie Carson
I installed the unit last fall and I am now getting another one for my son's house that he's building. It's a must-have for maintaining your home value.
Kyle Johnson
I followed the installation instructions from the video on the website. In a very short amount of time, the lime rings in the toilets disappeared and the white residue in the shower was gone as well. The scale around the faucets is no longer a problem. I strongly recommend this unit to anyone with hard water or scale issues.