24 in x 24 in Babcock-Davis Insulated Fire Rated Access Door

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 Knob/Key Operated Latch Bolt