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Pre-assembled system from factory
This ensures that the airflow remains optimal at all times
Corrosion-resistant construction suited for demanding industrial and laboratory extraction environments
Effective for vibration isolation in mounting fans
Capability to add a Discharge Nozzle on top
Vertical Gravity PVC Back Draft Dampers Blower Compatibility:P25/S18/J25 Pre-assembled system from factoryMaterial of Construction: Body, damper plate and shaft is made of PVC. Temperature Limitation: Back Draft Damper recommended up to 140 F. Application: Designed to operate in ducting where highly corrosive air is present. Designed to fit round schedule 40 PVC ducting or other construction materials as specified by the dimensions listed for each model damper. Features and Benefits: All internal parts are plastic Can be installed vertically only Has bell