3 Hour Out Of Air Fire Door Grille 2663-48X18 Accessories available 4" through 40" round

available 4" through 40" round (2549)

1600 Series Engineering/Performance Data

* UL and California State Fire Marshall approved * 4-1/4" standard frame style * Maximum dimension 60w

tony@registers-direct

3 Hour Out Of Air Fire Door Grille 2663-48X18 Accessories available 4" through 40" roundh3. 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"