HS38: Fits Pipes up to 1" Outer Diameter. Designed to protect a single piece of equipment such as a tankless water heater from the effects of scale. Also recommended for small studio apartments and recreational vehicles (RVs).

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Your Price: $314.95
Retail Price:$354.95
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Part Number: hfu1001

The HS38 water conditioner provides a chemical-free solution for the harmful effects of scale in water heaters, RVs and small homes. The device fits pipes up to 25mm (1") outer diameter.

Click to view HS38 User Guide

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 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.