FD35SSOW UL 555 1.5 Hr. Static, V-Groove Blade, Factory Sleeve
The FD35SSOW is a UL555 classified, 1-1/2 hour rated, multiblade fire damper designed for use in "out of wall or concrete floor" through penetration applications. The FD35SSOW features:
- UL approval for dual directional air flow.
- Maximum velocity of 2,000 fpm.
- Maximum 4" static pressure.
- Stainless steel construction.