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    FSD-311

    Greenheck Product # FSD-311
    Class I leakage rating with airfoil blades, pressure up to 8 in. wg, velocity to 4000 fpm and temperature to 350°F.

    Certifications:

    • AMCA Air Performance
    • California State Fire Marshal (Listing # 3230-0981: 0104)
    • California State Fire Marshall (Listing # 3225-0981:0103)
    • UL 555 and UL 555S (Listing #R13317)
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