Vents PS 101 Wall Vent Kit 4" with Mahogany External Grille Twinfresh You can choose between exhaust

You can choose between exhaust or supply ventilation depending on how you install the fan within the system

It features a single speed motor with overheating protection

adding to the 150 LD's simple backdraft flap for a more secure system - ultimately helping to keep unwanted cold or hot air from entering your space

facility managers

Includes a 6ft standard cord

Vents PS 101 Wall Vent Kit 4" with Mahogany External Grille Twinfresh You can choose between exhaustThe Vents PS101 Passive 4" Air Vent with Mahogany exterior grille is an efficient fresh air solution for homes, cottages, cabins, offices, and other residential or light commercial spaces. Designed for through wall installation, this passive wall vent helps improve indoor air quality by allowing outside air to enter the room without the need to open windows or use powered ventilation. Perfect for spaces that need simple, reliable background