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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
enclosed in valve to assure trouble-free operation
Dampers above 80 square inches free area will be provided with blade insulation
Designed for protection of ceiling openings in fire rated floor/ceiling assemblies with fire resistance ratings of 3 hours or less
*Note: Ceramic fiber blade insulation is not UL required on dampers with free areas less than 80 square inches
Steel construction
Architectural Lattice Grilles 1308-4x18 Specialty Products enclosed in valve to assureStandard Features 1 rim size (2 larger than nominal duct size order size) 14 gauge steel construction Countersunk mounting holes for a flush appearance 7 8 Wide x 7 8 High square holes. 1 4 crossbars, with 60% free area Options 14 GA 304 SS Construction Fractional Sizes Tamper proof Screws *Pricing is based on standard 14 GA steel construction. Please contact us for a quote on options. tony@registers direct. com
