Serves as an air inlet in houses with Tunnel or Combi-Tunnel ventilation.
This tunnel inlet can be mounted directly in interior walls or sandwich panels and is equipped with semi-insulated inlet flaps made from PVC.
1 Used for air direction/speed/air volume control
2 Designed for livestock house with less wall space clearance
3 Available with transparent lap or insulated flap
4 Airtight when closed
5 Reduced building and fitting costs, maintenance free
|Specification||size（WxH）||Size for installation|