Ceiling Radiation Damper, Size 320, For Lighted Model SP A200-A390 and B50-B200
Greenheck Product # 846347
The SP Ceiling Radiation damper protects fire rated ceilings and effectively blocks the spread of heat and flames through the building's ventilation system. This damper is UL Classified; rated at three to four hours fire resistance. For use with Lighted SP Fans.