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Calcium Filter Unit


Product code — ACQ4XL

Designed to deliver no-nonsense protection against limescale and improve water quality for steam and all water based applications. Offering simplicity and flexibility in the most cost-effective and environmentally friendly manner.

  • Easy-install head and quick replacement.
  • Remove the hassle. One filter, multiple uses.
  • CGM delivers optimum water quality to guard against corrosion and limescale.
  • 100% Recyclable product – enhancing sustainable credentials.
  • Incorporates carbon core to remove chlorine, bad tastes etc for final polishing of water prior to use.
  • High flow rates.
  • Includes full installation kit.
  • WRAS approved resin.



  • Espresso machines, bean-to-cup coffee systems. 10 grid combination/steam ovens, bratt pans.

550 x 271 H x Ø (mm)

21,833 litres (at 180ppm) with 30% Blend*

*other blend % available

Max Flow Rate (lpm): 10 – 12

Temperature (°C): 2 – 49

Connection: 3/4” mbsp

Designed with the Earth in mind.

Every Monarch Water product has been carefully designed to minimise its environmental impact.

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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.