2" 3 Hour Vertical Mount Fire Door 2561-36X24 Accessories Step down core designed for

Step down core designed for 4-way uniform air distribution

14" and 16" * Soft White Options * Field installable Bowtie Damper (BD) (sizes 6-14"

Zinc plated steel closure spring

Standard Features * 1/2" spacing dual angular louvers * 22 & 20 gauge cold roll steel * Mullions are reinforced with stiffeners for greater strength * For applications where greater air volume is required * Install with louvers in up or down position for best duct concealment * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * Tamper proof screws * Standard Color

2" 3 Hour Vertical Mount Fire Door 2561-36X24 Accessories Step down core designed forh3. Standard Features * 2561 Square or rectangular fire door for vertical mount only. Maximum dimension 48w, 49h. For damper free area chart A click here * 2563 Out of Airstream fire door. Square or rectangular for vertical mount only. Maximum dimension 48w, 41h. For damper free area chart B click here * 2565 Round fire door for vertical mount only. Available 4" thru 40" round. * UL and California State Fire Marshall approved * 2" thinline frame *