3 Hour Out Of Air Fire Door Grille 2663-20X10 T-Bar RS34 Series Engineering/Performance Data

RS34 Series Engineering/Performance Data

Blade lock to secure blades once the product is activated

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

stair risers

3 Hour Out Of Air Fire Door Grille 2663-20X10 T-Bar RS34 Series Engineering/Performance Datah3. 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"