Description
- A bimetal coil automatically opens and closes the ventilation louvers as temperature changes
- In the event of a flood the internal floats lift to release the flood door to rotate open and relieve the hydrostatic pressure regardless of the louvers’ position
- Certified flood debris clearance is demonstrated with a 3′ diameter opening when the flood door is activated
- Used for a home with a crawlspace or any enclosed area that desires natural air ventilation and flood protection
- 8 In. x 16 In.
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