36" x 36" Insulated Fire Rated Access Door - MIFAB MIFAB Series MPFR fire rated access door is approved by Underwriters Laboratories Inc., for 1 ½ hours, “B” label in walls and is approved by Warnock Hersey for 2 hours in and 3 hours in walls. The door meets ANSI-UL 10B standards. The same door can be used in walls . Tests were conducted using mild steel and type 304 stainless steel. Category Number: 627 Brand: MIFAB Mpn: MPFR-3636 Model Number: MPFR-3636 Upc: 701807920972 ...
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