Gravity Vents

Metal Form Manufacturing’s gravity intake & relief ventilators feature a low silhouette design that operates on the pressure difference between the inside & outside of the building. They are available in a variety of materials including aluminum, copper, and stainless steel. Popular options include an insulated hood, anti-condensate undercoating, dampers or shutters factory mounted in the ventilator throat, and a hinged hood. An enamel finish is also available.

Gravity Intake & Relief Ventilators