4 1/4" Vertical Mount Fire Damper 2633-36X18 past 12 months Note: Listed Size Is Nominal

Note: Listed Size Is Nominal Duct Opening / Nominal Filter Size

060 T6 extruded aluminum construction * 45 fixed blade face 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 * 900 2 FG - 2" filter spacing (filter not included) * 900 TFG - T-Bar mount * 920 FG Series - galvaneal steel frame * Standard Color

1550 Series Engineering/Performance Data

1x1 T-Bar (10" x 10" duct)

Square or rectangular for vertical mount only

4 1/4" Vertical Mount Fire Damper 2633-36X18 past 12 months Note: Listed Size Is Nominalh3. 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