4 1/4" Vertical Mount Fire Damper 2633-20X20 past 12 months 2550 Series Engineering/Performance Data

2550 Series Engineering/Performance Data

060 T6 extruded aluminum construction * Bar grille designed to conceal filter * Hand operated lever for easy filter access * Concealed mounting holes * Filter door hinges parallel to longest side * Filter retainers * Removable face for easy cleaning * For 1" filter (not included) * Soft White Options * 915 2 FG - 2" filter spacing (filter not included) * 915 TFG - T-Bar mount * Standard Color

850 Series Engineering/Performance Data

linkage and handle enclosed in valve to assure trouble-free operation * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Steel multi-shutter damper * Soft White Options * 200 O - steel lever operated opposed blade damper * Tamper proof screws * Standard Color

Spring actuated curtain-type fire damper with 2 1/4" round connection for horizontal or vertical mount

4 1/4" Vertical Mount Fire Damper 2633-20X20 past 12 months 2550 Series Engineering/Performance Datah3. 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