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      4K Sectional Knob

      Exit Device Trim | 4K

      Secure By Design

      GT135 LED

       

      As Featured in Door Security + Safety Magazine

      XGT/GT Series Classroom Intruder Lock

      Faced with a life-threatening lockdown, you need to protect staff and students with confidence. PDQ’s classroom intruder lock is designed to rapidly lock down a classroom, while providing you visual feedback for peace of mind in an emergency situation.

      Hardware that Doesn’t Cut Corners

      When your classroom is under heavy stress for most of the year, you need hardware that can go the distance. PDQ’s door hardware is built with durability and security in mind.

      Racine Lutheran High School

      The renovation and expansion of Racine Lutheran High School will enhance educational space and instructional opportunities, provide needed athletic facilities, additional classroom space, and provide better separation of school and athletic spaces for improved security and safety of students, staff and ...

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      St. Mary's Preparatory School

      A Catholic, college preparatory high school with a Polish-American heritage and legacy since 1885 A.D. St. Mary’s exists to provide deserving students with the moral guidance, discipline, and education to become Christ-like models of service and leadership for the world.

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      W.L. Swain Elementary School

      W.L. Swain Elementary School is a public school located in Plainville, GA. The school was badly in need of renovation and updates. The student population consists of 396 kids grades ...

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      Hannibal School District

      School safety is at the front of everyone's mind. How can we better secure our classrooms to protect children and teachers? Building strong locks that are accessible and affordable is the first step. 

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      University Liggett School

      University Liggett School is a private school in Grosse Pointe Woods, Michigan. Founded in 1878, it is Michigan's oldest independent co-ed day school. In 2017, with enrollment growing, Liggett hired Detroit-area architectural firm Landry/Cekauskas to design a modern and functional new athletic center. 

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      Popular Products

      Documentation and Downloads:

      Product Description:

      A Sectional ball knob for the 4200 Series Exit Devices.

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      Applicable Devices

      • 4200R Wide Stile Rim Device
      • 4200V Wide Surface Vertical Device

      Consult with an Expert

      PDQ’s experts have been providing customers with high-quality products and services for over 40 years. Contact us today for more information on how to secure your learning institution.