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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
Standard Features * Extruded
904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 6" Duct Opening (front blades parallel to shortest dimension)
For evaporative cooling or high velocity exhaust applications
1550 Series Engineering/Performance Data
Reinforced welded core and extra supports for heavy duty application
2" Round Vertical Mount Fire Damper 2549-32 T-Bar Standard Features * Extrudedh3. Standard Features * 1 1 2 hour rated fire damper * 2549 Round damper for vertical mount only. Available 4" thru 40" round. * 2550 Round Spring actuated (6) damper for vertical or horizontal mount. Available 4" thru 28" round. * UL and California State Fire Marshall approved * 2" thinline frame * Interlocking steel roll formed blade (3) with roll formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G
