Gravity Ventilators
Gravity intake and relief ventilators for use in non-powered applications.
Gravity Ventilators
Gravity intake and relief ventilators for use in non-powered applications.

The gravity intake and relief ventilators are non-powered (do not have a fan) and work on pressure differential between the inside and outside of the building.

Intake Gravity Ventilators
Intake Gravity Ventilators
Non-powered ventilators work on pressure differential between the inside and outside of the building allowing the intake of fresh air.
https://catalog-api.greenheck.com/api/category/en-us/seo/intake-gravity-ventilators
Relief Gravity Ventilators
Relief Gravity Ventilators
Non-powered ventilators work on pressure differential between the inside and outside of the building allowing air to exhaust naturally.
https://catalog-api.greenheck.com/api/category/en-us/seo/relief-gravity-ventilators