4" 3 Hour Vertical Mount Fire Door 2665-8 past 12 months Options * Sleeve variations *

Options * Sleeve variations * 304 stainless steel construction * Fractional and odd sizes available h3

904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 20" Duct Opening (front blades parallel to shortest dimension)

Standard Features * Heavy duty honeycomb construction * Blades run parallel to longest dimension given * Gym Grade - includes welded core and extra supports for heavy duty application * Mounting holes for sidewall and ceiling application * Recessed screwdriver operated opposed blade damper to control air volume for positive balance of system * Soft White Options * No mounting holes * Tamper Proof Screws * Standard Color

One piece steel frame

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4" 3 Hour Vertical Mount Fire Door 2665-8 past 12 months Options * Sleeve variations *h3. 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"