4 1/4" Vertical Mount Fire Damper 2633-48X14 Commercial Double deflection radius mount spiral

Double deflection radius mount spiral pipe grille with adjustable blades

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

1550 Series Submittal

Standard Features * Use in applications for installing round without damper * Steel galvaneal construction

4 1/4" Vertical Mount Fire Damper 2633-48X14 Commercial Double deflection radius mount spiralh3. 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