BI fire-rated, insulated access doors provide access through openings in fire-rated vertical surfaces and have a minimal sight line for a concealed appearance. UL listed "B" label for 1-1/2 hours in vertical surfaces (maximum temperature rise to 250 F in 30 minutes). Warnock-Hersey listed for 3 hours in horizontal surfaces.

Features

• BIT
• 1" exposed flange
• Vertical or horizontal installation
• Fire rated vertical and horizontal
• Knurled know/key operated latch bolt