4" Round Vertical Mount Fire Damper 2649-34 Residential Registers & Grilles Margin edges are 7/8" projection

Margin edges are 7/8" projection for baseboard installation

Standard Features * Gang-operated opposed blade radial volume control damper for use with RD Series Round Diffusers * Available in 2" increments from 6"-24"

Standard Features * Steel galvaneal construction * For evaporative coolers or central blower systems * Modern step-down design * 4-way air diffusion * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * One-piece removable slide damper for off season closure * Soft White

Countersunk mounting holes for flush appearance with stainless sheet metal screws

Countersunk mounting holes for flush appearance with color matching Phillips Pozidriv screws

4" Round Vertical Mount Fire Damper 2649-34 Residential Registers & Grilles Margin edges are 7/8" projectionh3. Standard Features * 2649 Round damper for vertical mount only. Available 4" thru 52" round. * 2650 Round spring actuated (6) damper for vertical or horizontal mount. Available 4" thru 52" round. * UL and California State Fire Marshall approved * 4 1 4" standard frame style * Interlocking steel roll formed blade (3) with roll formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G 90) * Self locking