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These softeners cost less than £10 a year to run on electricity compared to £117 for a washing machine, £104 for a tumble dryer, £153 for a full-size dishwasher and £155 for a free-standing fridge freezer.

(source for non-softener appliances:, October 2022)

Electric Softener

SOF3000 HE

Product code — SOF3000HE

High efficiency water softener suitable for 1 – 10 people with space-saving separate salt tank.

  • Space-saving separate salt tank that can be placed up to 5 metres from the softener.
  • WRAS approved – demonstrating quality and durability of the highest standard.
  • Leading 7 year parts and 2 year labour warranty – for complete peace of mind.
  • Opti-brining with HE resin – only regenerates the resin (food grade) that has been used.
  • High flow rates up to 78lpm.
  • Includes Rapid-Fit bypass which reduces the components needed for installation by up to 80%.
  • Digital display for easy control and programming.
  • Robust design for quick and easy installation.
  • Larger 75L salt tank available upon request.
  • Complete with full standard installation kit and water hardness test kit.
  • Electrical supply – 220v 3 pin plug with plug-in transformer


597 x 270 x 270 HxWxD (mm)

440 x 320 x 320 (Tank) HxWxD (mm)

Depth shown in chart above includes allowance for standard Monarch hoses (included). If using Maxflow hoses please allow an extra 18mm to depth. If using Ultraflow hoses for 28mm applications, please allow an extra 25mm to depth.

3,000 litres (at 300ppm)

Salt use per regeneration (kg): Tablet 1.4 – 2.3

Water Pressure (bar): 1.5 – 5

Max Op. Temp (°C): 49

Connection: 3/4” mbsp

Additional Information

Product video

The Benefits of Soft Water

Installation guide

Which water softener is best for you?

Our handy online tool will help you to decide. It takes just seconds.

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Which water softener is best for you?

Our handy online tool will help you to decide. It takes just seconds.

Enter your postcode below to check your water hardness. It is important to know if you have hard or soft water.


Re-Introducing — 
the Midi HE Softener

The Midi HE is the UK’s best-selling softener in the merchant channel and the number 1 choice for UK installers. The WRAS-approved Midi HE is high efficiency and provides the ultimate protection against limescale.

Monarch Champions — 
People you can trust

We’re so confident our products will meet your needs that we’ve assembled a group of existing customers – our ‘champions’. Our advocates will directly answer any questions you may have, from installation to living with a Monarch Water product.

Ecologi —
Climate action at your fingertips

Simple and impactful ways to collectively reverse climate change.

The Eczema

Monarch is the perfect partner for The Eczema Academy, offering a multitude of sustainable, WRAS-approved water treatment products that can help alleviate skin conditions, such as, eczema. Carolyn Akinyemi, founder of the academy said: “We are extremely happy to be working alongside Monarch – a reputable and innovative company that offers a number of softening and filtration solutions, which are key components in the effective protocols for the relief of Eczema”.

Together, Monarch and The Eczema Academy aim to educate people on how they can help relieve and control their Eczema. Ian Flack, Monarch’s head of sales said: “We are proud to be supporting Carolyn and The Eczema Academy. We are looking forward to working closely with her going forward to help convey the benefits that soft water can bring to those affected by eczema”.

If you would like to find out more about The Eczema Academy, visit or email

Keep up-to-date with all the latest from The Eczema Academy by subscribing to their YouTube channel here.