2" Round Vertical Mount Fire Damper 2549-34 Residential Registers & Grilles Multi-Shutter Damper standard on 6"

Multi-Shutter Damper standard on 6" widths and larger

Perforated face grille

Double deflection transition box mount spiral pipe grille

Stamped from cold roll steel

2" Round Vertical Mount Fire Damper 2549-34 Residential Registers & Grilles Multi-Shutter Damper standard on 6"h3. 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