Normally used as an inlet or outlet for most residential heat recovery units.
This vent is suitable for use with most 6″ Heat Recovery Systems.
They match most roof slates in size, shape and colour (blue black)
Suitable for roof pitches between 20° and 60°.
Guaranteed actual net free ventilation area: 20,000 mm².
Driving rain and deluge rain resistance demonstrated by test data.
Prevents entry of birds and large insects.
AA fire rating to BS 476: Part 3: 2004.
Underlay opening protector, integral 4 mm insect screen, and ventilator throat or extension sleev meet design requirements of BS 5250.
Designed and developed under BS EN ISO 9001.