High-temperature flat (or curved) access doors allow users to access the internals of a rectangular duct used for higher-temperature ventilation, such as combustion exhaust or manufacturing ventilation. They generally consist of two doors laminated with heat-resistant metals that, when secured, clamp a high-temperature seal or gasket in place.

• 16 ga, Steel
• Thumbscrews
• 2,300°F Max Temp Rating
• 2 Mounting Studs (6 inches)