4" Horizontal/Vertical Mount Fire Damper 2634-22X8 past 12 months Stamped from cold roll steel

Stamped from cold roll steel

Standard Features * Opposed blade operation for precise volume control * 16 gauge galvanized channel frame * Blades are vee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non-metallic celcon bushings * 1/2" square zinc plated steel pivot pins * 1/2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3

2500/2600 Installation Instructions

Standard Features * Full size fixed bar blade T-Bar lay-in return air grille *

904 - Double Deflection Adjustable Aluminum Blade Grille For a 40" x 18" Duct Opening (front blades parallel to shortest dimension)

4" Horizontal/Vertical Mount Fire Damper 2634-22X8 past 12 months Stamped from cold roll steelh3. 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