Small Device,
BIG Benefits
For smaller systems looking for maximum performance and ROI, the NEW DosaFil-Duo® Nano range delivers.


A family of ‘do it all’ conditioning devices for the cleaning, protection and maintenance of closed heating and cooling systems
Meet the DosaFil-Duo® Nano Family
With varying system volume, operating pressure and temperature ranges, there’s a choice to suit every need.
DosaFil-Duo® Nano
- Small and compact
- Wall mounted device
- Up to 40,000 litre system volume
- Maximum temperature 90°C degrees
- Maximum pressure 10 bar

DosaFil-Duo® Nano+
- Same features as DosaFil-Duo® Nano, but with built-in smart monitoring
- This automatically, instantly notifies user when filter bags need changing. It also has options for BMS built-in as standard
- Wall mounted device
- Upto 40,000 litre system volume
- Maximum temperature 90°C degrees
- Maximum pressure 10 bar

DosaFil-Duo® Nano+PV
- It has a dedicated recirculation pump with controls to ensure good flow through the device and micro bubble coalescence
- Back board mounted for easy installationUpto 10,000 litre system volume
- Maximum temperature 90°C degrees
- Maximum pressure 10 bar

Not Sure Which One You Need?
Use our product selector tool to find the most efficient DosaFil-Duo® for your system.
Nano Size. Huge Benefits.
Complete Conditioning
Cleans, protects and maintains systems.
OEM Grundfos
DosaFil-Duo devices feature OEM Grundfos pumps.
Safe Dosing
Of solid or liquid chemicals.

Continuous Air Removal
Prevents corrosion.
Side Stream Filtration
Down to 2 micron.
Made in Britain
Designed and manufactured in Britain.


