Description
The DUCO Filterset 2 x Coarse 65 % (Energy Comfort D400 & Plus) is a genuine replacement filter kit designed specifically for use with the DUCO ranges of heat recovery ventilation units.
Why Replace Filters Regularly?
Over time, filters become clogged with dust and pollutants, which can:
- Reduce airflow
- Increase energy consumption
- Lower heat recovery efficiency
- Increase noise levels
For optimal performance, filters should typically be replaced every 6–12 months, depending on usage and environmental conditions.
Compatibility
✔ Designed specifically for DUCO Comfort D400 and Plus units
✔ Direct fit – simple and quick replacement
✔ Maintains manufacturer performance standards and warranty



