Delivering Excellence Through Innovative Products

PROTERRA® Systems offers a full line
of controls and ventilation equipment for managing the poultry house environment. Read more about our popular line of metal and fiberglass fans with BI-FLOW® Shutters and our evaporative cooling systems, tunnel doors, inlets and winching systems.

Tunnel Doors

ProTerra® Tunnel Door Systems: up to five-foot door heights available to match typical tunnel house openings for retrofit or new construction. Door angle is adjustable for maximum efficiency in a wide range of climate conditions.

ProTerra System’s Tunnel Doors swirl incoming air for better mixing with house air.

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