The Sargent 55-12-NB8713-E-ETL-84 is a Fire Rated Surface Vertical Rod Exit Device, with a (55) Request to Exit feature, comes Less Dogging, with ETL Lever trim, where the Key Locks Or Unlocks Outside Lever. The Sargent 55-12-NB8713-E-ETL-84 has a 24"-32" rail length, is for use with 84" high doors, and is Grade 1 making it Ideal For Commercial And Institutional Facilities. 

Sargent 13 Function
Key Outside Unlocks/locks Trim (#41 Cylinder Supplied)

NB8700 Series Surface Vertical Rod Exit Devices

The NB8700 Series is a top latch surface vertical rod exit device.

• Door Types: Wood or metal 1 3/4"(44mm) Thick Door; Over 1 3/4" to 2 1/4" specify thickness and order as a 31- Prefix; 4 1/2" (114mm) minimum stile with trim and 3 1/2" (44mm) minimum stile without trim
• Door Widths: E Rail - 24" to 32" (61cm to 81cm) No cutting required for 32" door; F Rail - 33" to 36" (84cm to 91cm) No cutting required for 36" door; J Rail - 37" to 42" (94cm to 107cm) No cutting required for 42" door; G Rail - 43" to 48" (110cm to 122cm) No cutting required for 48" door