External Wall Grille for 100mm Heat Recovery Ventilation Ducting
Wall Grills for 100mm Intakes & Extraction Outlets
Available in white or brown
For use with 100mm Insulated ducting / piping.
This duct is easy to handle, install and very, very quiet in operation.
When combined with our heat recovery ventilation units you can recover up to 70% of the heat you would normally be wasting with ventilation alone.