Precision Gravity Exhaust Shutters (TE-Series) Misty Ref Wall-Mounted NRDs are engineered for low “cracking pressure,” meaning they require very little airflow to open, making them ideal for even low-pressure ventilation systems. The “TE” (Terminal Exhaust) design features a flanged frame specifically shaped for mounting against external walls or at the end of a duct run.
Key Technical Features:
Lightweight Aluminum Blades: Constructed from high-grade aluminum to ensure maximum responsiveness and corrosion resistance against outdoor elements.
Nylon Bushings: Each blade pivots on low-friction nylon bushings to prevent “clinking” and ensure maintenance-free operation.
Interlocking Edges: Blades are designed to overlap when closed, providing a tight seal against backdraughts.
Bird Screen Integration: Can be supplied with an integrated galvanized or stainless steel mesh to prevent birds and large insects from entering the duct.
