Uninsulated Fire Rated Access Doors: U-Series
Nystrom U-Series fire-rated, uninsulated 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 250єF in 30 minutes).
UT-Series
Nystrom U-Series: UT fire-rated, uninsulated 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 250єF in 30 minutes).

UT fire rated access doors provide access through fire rated
vertical surfaces, in any material including drywall, plaster, and CMU.
UW-Series
Nystrom U-Series: UT fire-rated, uninsulated 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 250єF in 30 minutes).

UW fire rated access doors are manufactured with a tape in bead
flange for a concealed appearance in vertical drywall surfaces, leaving
only the door exposed.
UP-Series
Nystrom U-Series: UP fire-rated, uninsulated 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 250єF in 30 minutes).

UP fire rated access doors are manufactured with plaster casing bead
frames for a concealed appearance in vertical plaster surfaces, leaving
only the door exposed.
Uninsulated Fire Rated Access Door Order Guide
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