The Monarch Duo HE Pro-Flo Automatic Water Softener is a high-performance, twin-tank commercial water treatment system designed to deliver continuous soft water without interruption. Built for professional kitchens and hospitality environments, it provides reliable limescale protection for dishwashers, glasswashers, combi ovens, boilers, and other water-fed equipment.
With a capacity of 1,520 litres (at 300ppm hardness), the Duo HE is ideal for small to medium commercial operations such as restaurants, cafés, pubs, and boutique hotels. Its duplex twin-tank design ensures that one vessel remains in service while the other regenerates, meaning your site always has access to softened water—critical for uninterrupted kitchen performance.
The system uses advanced ion-exchange technology to remove calcium and magnesium ions, significantly reducing scale build-up and improving equipment efficiency and lifespan. The HE (High Efficiency) resin system optimises salt usage while maintaining consistent softening performance.
As part of the Pro-Flo range, the unit features intelligent electronic control, volume-based regeneration, and WRAS-approved components for compliance and reliability. It also supports high flow rates and is designed for straightforward installation in commercial environments where performance and continuity are essential.
Rated for operation up to 49°C, the Duo HE is suitable for most commercial warewashing and catering applications.
Key Features:
- 1,520 litre capacity (at 300ppm hardness)
- Twin-tank duplex system for continuous soft water supply
- Prevents downtime by regenerating one vessel while the other operates
- HE (high efficiency) resin for reduced salt and water usage
- Protects commercial kitchen equipment from limescale damage
- Improves performance of dishwashers, glasswashers, and boilers
- WRAS approved for commercial compliance
- High flow rate capability for busy environments
- Suitable for water temperatures up to 49°C
Specifications:
- Model: Duo HE Pro-Flo
- Capacity: 1,520 litres (at 300ppm)
- System Type: Twin-tank (duplex) automatic water softener
- Max Flow Rate: up to 65 lpm
- Water Pressure: 1.5 – 5 bar
- Temperature Range: 2°C – 49°C
- Connection: 3/4” male
- Salt Usage per Regeneration: approx. 0.84 – 1.2 kg
- Application: Commercial water softening for kitchen equipment
- Use: Hospitality, foodservice, and catering operations
