SKU: D2497
Harvey MiniMax M3 Water Softener
- Regular price
- £1,199.00
- Sale price
- £1,199.00
- Regular price
-
Compact. Powerful. Continuous soft water. Designed to last decades.
The Harvey MiniMax M3 is the 4th-generation twin-cylinder, non-electric water softener that delivers softened water 24/7 — even while it’s regenerating. It’s compact enough to fit neatly under most kitchen sinks, yet powerful enough to handle the demands of busy family homes with ease.
If you want proven engineering, exceptional reliability, and a system that can last 20–30 years with proper maintenance — this is a strong choice.
Ideal for households of 1–6 people and available in different gearings, making it suitable for your local water hardness.
It works with any British domestic plumbing system, including gravity-fed systems, unvented hot water cylinders and combination boiler systems. It is also ideal for third-floor bathrooms, as it has the lowest pressure drop of any softener of its type.
Uses the original block salt (2 x 4kg). Efficient metered regeneration means it only regenerates when needed — helping keep salt and water usage sensible.
Please note that it is critical to use Grade A PDV salt in water softeners. Sea, lake or solar salt will invalidate the softener parts and labour warranty.
- Twin-cylinder design (no waiting for regeneration)
- Non-electric operation
- 4th generation Harvey refinement
- Maximum flow rate: 55 litres per minute
- Operating pressure: 1–6 bar
- Slim footprint: 206 mm wide, 445 mm deep, 490 mm high
- Suitable for 30–600 ppm hardness
- ¾" connections
- 10-year parts warranty
- 2-year labour warranty (return to base)
(Equivalent to Harvey HV4 / TwinTec S3)
What’s Included
- Softener unit
- Free mainland UK delivery
- Manufacturer warranty
Not included
- Installation kit (available separately)
- Salt (required for commissioning)
You can arrange installation through your own plumber, or – if you are within our South East operating area – we can provide a professional installation quotation.
If you are a confident DIY installer, we are also happy to offer advice to help you get it right.
The M3 is an excellent all-rounder. But as always, choosing the right softener isn’t just about the unit — it’s about matching it properly to your home, usage, pressure, and expectations.
If you’re unsure, we’re always happy to guide you through that decision properly.
Because buying a softener is easy.
Choosing well is what makes it last.
