4" 3 Hour Vertical Mount Fire Door 2665-22 past 12 months Performance Data With Opposed Blade

Performance Data With Opposed Blade Damper

PERFORMANCE DATA FGAD Series Engineering/Performance Data

stair risers

904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 16" duct Opening  (front blades parallel to shortest dimension)

4" 3 Hour Vertical Mount Fire Door 2665-22 past 12 months Performance Data With Opposed Bladeh3. Standard Features * 2661 Square or rectangular fire door for vertical mount only. Maximum dimension 60x60. For damper free area chart A click here * 2663 Out of Airstream fire door. Square or rectangular for vertical mount only. Maximum dimension 60w x 52h. For damper free area chart B click here * 2665 Round fire door for vertical mount only. Available 4" thru 52" round. * 3 hour rated * UL and California State Fire Marshall approved * 4 1 4"