0-29,000 cfm

• The TR series Intake/relief gravity ventilators are spun aluminum construction. This provides for the longest possible life under harsh conditions.

• The ventilators are designed with an anti-backdraft flange.

• They can be used for intake or relief.

• Five year warranty.

• All corrosive resistant fasteners.

• Continuous welded curb cap corners for maximum leak protection.

• Birdscreen constructed of 1/2" mesh.

0-78,000 cfm

• The VI series Intake gravity ventilators are all aluminum construction. This provides for the longest possible life under harsh conditions.

• They can be used for intake or relief.

• All corrosive resistant fasteners.

• Continuous welded curb cap corners for maximum leak protection.

• Birdscreen constructed of 1/2" mesh