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Standard-BL Chicago Approved All LED Exit/Stair Sign And Emergency Steel Combination Single Face Red Letters White Housing No Remote Capacity Exit No Arrow (CALEDCXTEU1RW-NA) Tier8 Nora 4 Inch Cobalt ClickStandard BL Chicago Approved All LED Exit Stair Sign And Emergency Steel Combination Single Face Red Letters White Housing No Remote Capacity Exit No Arrow (CALEDCXTEU1RW NA)