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Water Conditioners

Salt-free scale protection

Suprion Water Conditioners for Domestic and Commercial Systems

Reduce limescale formation without salt, chemicals, regeneration cycles or a dedicated electrical supply. Suprion conditions hard water while leaving its naturally occurring calcium and magnesium in place.

No salt or treatment chemicals No dedicated power supply Domestic to industrial sizes
Find the right model
Suprion inline water conditioner for salt-free limescale control
Set the right expectation

What Does a Water Conditioner Actually Do?

A water conditioner and a water softener are not the same. Choosing between them depends on whether you want to inhibit limescale or remove the minerals that cause water hardness.

What Suprion does

Helps Control Scale Formation

  • Conditions calcium and magnesium as water passes through
  • Helps inhibit scale deposition when hard water is heated
  • Helps protect boilers, heat exchangers and water-fed equipment
  • Can gradually loosen existing deposits over time
  • Leaves the mineral content of the water in place
What it does not do

It Does Not Produce Soft Water

  • It does not remove calcium or magnesium from the water
  • It will not produce a zero-hardness test result
  • It does not use ion-exchange softening resin
  • It does not require salt regeneration or brine discharge
  • It is not a drinking-water contaminant filter
The key distinction: Suprion helps change how hardness minerals behave within the water system. A traditional softener physically removes those hardness minerals.
Not Sure Whether You Need a Softener or Conditioner?

Learn what causes hard water, how limescale forms and the difference between removing hardness minerals and controlling scale.

 Read the Hard Water Guide →
Suprion technology

How Does Suprion Work Without Electricity?

Water flows through an internal glass-reinforced plastic tube. The movement of the water generates an electrostatic charge around the tube, activating electrodes positioned outside the water pathway.

This produces a concentrated electrostatic field that influences the dissolved mineral ions as they pass through the unit. The treatment encourages scale to form within the moving water rather than depositing as hard scale on heat-transfer surfaces.

No electrode contact The electrodes remain isolated from the water.
Self-energising The flow of water generates the operating field.
Unrestricted pathway The smooth internal bore helps minimise flow restriction.
01
Water enters the unit

Hard water passes through the smooth internal tube in the marked direction of flow.

02
An electrostatic field is generated

Water movement generates the charge required for operation without an external power source.

03
Mineral behaviour is influenced

Scale-forming minerals are encouraged to precipitate in the water rather than on protected heating surfaces.

Compare the options

Water Conditioner or Water Softener?

Both address hard-water problems, but they work differently and produce different results.

01
Limescale conditioning

Suprion Water Conditioner

Primary purpose
Help inhibit scale deposition
Hardness minerals
Remain in the water
Salt required
No
Regeneration cycle
No
Wastewater or drain
No regeneration wastewater or brine drain
Dedicated electricity
No
Hardness test result
Generally remains unchanged
Best suited to
Low-maintenance scale protection while retaining minerals
02
Mineral removal

Ion-Exchange Water Softener

Primary purpose
Produce genuinely softened water
Hardness minerals
Calcium and magnesium are removed through ion exchange
Salt required
Yes, unless using a different specialist technology
Regeneration cycle
Yes
Wastewater or drain
A suitable regeneration drain is normally required
Dedicated electricity
Model dependent
Hardness test result
Reduced when the softener is correctly operating
Best suited to
Households specifically wanting genuinely soft water
Compare water softeners
Model selector

Which Suprion Water Conditioner Do You Need?

Select the model according to the internal pipe size and required flow, not simply the number of people in the property. Confirm the actual pipe dimensions at the intended installation point before ordering.

Important: The connection size written in a product name or kit description may refer to the supplied adaptors rather than the conditioner’s internal bore.
10mm Specialist small bore

JS-38E12 / EH-38E12

Compact specialist models for 10mm, ⅜-inch pipework. EH variants are intended for applications involving immersion-type electric heating elements.

Internal pipe size
10mm / ⅜ inch
Manual standard flow
Confirm for the intended application
Pressure note
These models are rated to 5 bar
15mm Domestic and point of use

JS-12E15 / JS-50

Models for 15mm, ½-inch pipework. These sizes can suit domestic or equipment-specific applications where the verified flow requirement remains within the selected pipe capacity.

Internal pipe size
15mm / ½ inch
Standard flow at 2m/sec
24.4 litres per minute
Model choice
Confirm JS, EH and fitting requirements
20mm / 22mm kit Typical domestic main

JS-75 / JS-75E22 Kit

General-purpose Suprion models with a 20mm, ¾-inch internal connection. The JS-75E22 kit provides fittings intended for installation with common 22mm domestic pipework.

Internal pipe size
20mm / ¾ inch
Standard flow at 2m/sec
43.9 litres per minute
Important distinction
The 22mm kit uses adaptors around the 20mm conditioner
25mm Larger domestic or commercial

JS-100

A 25mm, 1-inch general-purpose model for installations requiring more flow capacity than the smaller domestic units.

Internal pipe size
25mm / 1 inch
Standard flow at 2m/sec
72 litres per minute
Installation type
Threaded inline model
32mm Commercial capacity

JS-125

A 32mm, 1¼-inch general-purpose model for larger water systems where the pipe size and required flow exceed normal domestic installations.

Internal pipe size
32mm / 1¼ inch
Standard flow at 2m/sec
120 litres per minute
Installation type
Threaded inline model
40mm High-flow commercial

JS-150

A 40mm, 1½-inch model designed for higher-capacity commercial water treatment applications.

Internal pipe size
40mm / 1½ inch
Standard flow at 2m/sec
163 litres per minute
Installation type
Threaded inline model
Specification required Commercial

JS-200

The JS-200 appears within the Regal Flow range but is not listed in the supplied Suprion installation manual. Its connection, flow and application must therefore be confirmed before ordering.

Internal pipe size
Confirm with Regal Flow
Flow capacity
Requires project specification
Next step
Provide pipe size, flow and application details
50mm or 65mm Industrial and high capacity

JS-250

A flanged commercial and industrial model available for 50mm or 65mm pipework. Correct flange specification must be confirmed when ordering.

Internal pipe size
50mm / 2 inch or 65mm / 2½ inch
Standard flow at 2m/sec
264 or 434 litres per minute
Installation type
Flanged connection
Flow figures are the standard volumetric rates published in the supplied Suprion installation manual at a water velocity of 2m/sec. Final sizing must account for the complete system design, peak demand, pressure and application.

Shop Suprion Water Conditioners

Compare models by connection size and application. Contact us before ordering if the installation requires commercial or industrial sizing.

Installation planning

What Must Be Checked Before Installation?

Correct placement, direction and pipe compatibility directly affect the performance of the conditioner.

01
Match the pipe bore

Choose a model with the correct internal diameter for the pipework and required flow.

02
Follow the flow arrow

Suprion is directional and must be installed according to the IN, OUT and red-arrow markings.

03
Position before the heater

Install in the incoming cold main, normally at least one metre before the boiler or water heater.

04
Avoid turbulent locations

Allow suitable straight pipe around elbows, pumps and tee pieces wherever possible.

05
Check earthing

Plastic-pipe installations require the Suprion earth terminal to be connected to a suitable earthing point.

06
Position filters upstream

Particulate filters must be fitted before Suprion and must not contain polyphosphate or other scale-inhibiting chemicals.

Alternative treatment

Do You Need Genuinely Soft Water?

Compare salt-based and non-electric water softeners if your priority is removing hardness minerals rather than conditioning them.

View water softeners
Understand the problem

Stop Limescale and Protect Your Appliances

Learn how limescale develops and what it can mean for boilers, heating equipment and water-using appliances.

Read the limescale guide
Frequently asked questions

Suprion Water Conditioner FAQs

Clear answers about performance, installation, sizing and the difference between conditioning and softening.

Does a water conditioner soften water?

No. Suprion does not remove calcium and magnesium, so it does not produce genuinely softened water. It conditions the water to help inhibit those minerals depositing as hard scale.

If you specifically want the hardness minerals removed, you should compare traditional ion-exchange water softeners.

Does Suprion require electricity?

No dedicated electrical supply is required. The flow of water through the internal tube generates the electrostatic charge used by the conditioner.

Earthing requirements still apply, particularly when the unit is installed between plastic pipes.

Does Suprion add salt or chemicals to the water?

No. Suprion does not require softener salt, regeneration chemicals or chemical scale inhibitors. Its working electrodes do not come into direct contact with the water.

Will a hardness test show that Suprion is working?

A conventional hardness test will generally continue to detect calcium and magnesium because the conditioner does not remove them. Its purpose is to influence scale formation rather than reduce the mineral concentration.

Can Suprion help with existing limescale?

The manufacturer states that Suprion can gradually loosen and help remove existing scale deposits. During the initial period, loosened deposits may collect in filters, shower heads and other outlets, so these areas may require more frequent cleaning.

How long does a Suprion water conditioner last?

The supplied manual gives an expected service life of approximately ten years. It also reports that some units operating in favourable conditions have continued working for more than 30 years with proper care.

The manufacturer warranty is three years and is subject to correct installation, operation and registration conditions.

Which Suprion model should I choose?

Selection should be based on pipe bore, peak flow requirement, pressure, water system design and the equipment being protected. Do not select solely by household occupancy.

For commercial or industrial installations, provide Regal Flow with the pipe size, normal and peak flow rates, application and pipe material before ordering.

Need Help Specifying the Right Suprion?

Send us the pipe size, pipe material, application, available flow data and details of the equipment you want to protect. We will help identify the appropriate model before you order.

Contact Support Team
Email: info@regalflow.co.uk
Telephone: 0121 630 1130
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