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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
Non-standard size collar (available in 6" through 20")
Fractional
SD34 - Transition Box Spiral Pipe Grille (DOUBle Deflection)
22 gauge butterfly style galvanized steel blades
Designed to minimize vision into the air duct
4" Horizontal/Vertical Mount Fire Damper 2634-24X6 past 12 months Non-standard size collar (available inh3. Standard Features * 2633 Square or rectangular out of airstream fire damper for vertical mount only. * 2634 Square or rectangular Spring actuated (6) out of airstream fire damper for horizontal or vertical mount. * UL and California State Fire Marshall approved * 4 1 4" standard frame style * Maximum dimension 60w, 52h * Interlocking steel roll formed blade (3) with roll formed frames (1) * Blade lock (5) * Damper manufactured from corrosion
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