MSBG – Maximum Security Bar Grille

MSBG – Maximum Security Bar Grille
  • ductbarrier-grille-2

MSBG – Maximum Security Bar Grille


Security bar grilles restrict access and allow airflow between secure and non-secured areas. Ideal for maximum
security applications, security bar grilles feature all-welded construction and are mounted to the wall using a welded frame with optional mounting flanges.

Typical Applications
Security grilles reduce unwanted access to ductwork in spaces where supervision is minimal and vandalism or misuse is a risk. Such areas include: correctional facilities, psychiatric hospitals, rest stops, park facilities, schools, and sports venues. Maximum security bar grilles provide additional security in openings between secure and non-secure areas, and should be placed in every opening through a secure wall.Construction Options

  • Size
    • Minimum: 6 in. x 6 in.
    • Maximum: 30 in. x 30 in.
    • Oversized construction available for field assembly
  • Options
    • Wire mesh (WM)
    • Mounting flanges
    • 4-sided mounting frame